Home / 1,293,109,867.13-1,939,681,596.85-431,466,859.13

Finding the Fourth Proportional to 1,293,109,867.13, 1,939,681,596.85 and 431,466,859.13

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Solution

The fourth proportional to 1,293,109,867.13, 1,939,681,596.85 and 431,466,859.13 is: 647,205,893.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,109,867.13 : 1,939,681,596.85 = 431,466,859.13 : x
  2. Step 2: Convert to fraction form
    1,293,109,867.13/1,939,681,596.85 = 431,466,859.13/x
  3. Step 3: Cross multiply
    1,293,109,867.13x = 1,939,681,596.85 × 431,466,859.13
  4. Step 4: Simplify right side
    1,293,109,867.13x = 836,908,326,294,355,328
  5. Step 5: Solve for x
    x = 836,908,326,294,355,328/1,293,109,867.13
  6. Step 6: Final answer
    x = 647,205,893.00

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Double scale
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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.