Home / 992,196,021.40-1,488,294,032.10-647,538,818.20

Finding the Fourth Proportional to 992,196,021.40, 1,488,294,032.10 and 647,538,818.20

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Solution

The fourth proportional to 992,196,021.40, 1,488,294,032.10 and 647,538,818.20 is: 971,308,227.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,196,021.40 : 1,488,294,032.10 = 647,538,818.20 : x
  2. Step 2: Convert to fraction form
    992,196,021.40/1,488,294,032.10 = 647,538,818.20/x
  3. Step 3: Cross multiply
    992,196,021.40x = 1,488,294,032.10 × 647,538,818.20
  4. Step 4: Simplify right side
    992,196,021.40x = 963,728,158,680,146,816
  5. Step 5: Solve for x
    x = 963,728,158,680,146,816/992,196,021.40
  6. Step 6: Final answer
    x = 971,308,227.30

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.