Home / 102,221,320.40-153,331,980.60-51,111,227.60

Finding the Fourth Proportional to 102,221,320.40, 153,331,980.60 and 51,111,227.60

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Solution

The fourth proportional to 102,221,320.40, 153,331,980.60 and 51,111,227.60 is: 76,666,841.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,221,320.40 : 153,331,980.60 = 51,111,227.60 : x
  2. Step 2: Convert to fraction form
    102,221,320.40/153,331,980.60 = 51,111,227.60/x
  3. Step 3: Cross multiply
    102,221,320.40x = 153,331,980.60 × 51,111,227.60
  4. Step 4: Simplify right side
    102,221,320.40x = 7,836,985,758,805,384
  5. Step 5: Solve for x
    x = 7,836,985,758,805,384/102,221,320.40
  6. Step 6: Final answer
    x = 76,666,841.40

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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.