Home / 292,478,010.64-438,712,587.32-71,151,434.57

Finding the Fourth Proportional to 292,478,010.64, 438,712,587.32 and 71,151,434.57

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Solution

The fourth proportional to 292,478,010.64, 438,712,587.32 and 71,151,434.57 is: 106,726,074.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,478,010.64 : 438,712,587.32 = 71,151,434.57 : x
  2. Step 2: Convert to fraction form
    292,478,010.64/438,712,587.32 = 71,151,434.57/x
  3. Step 3: Cross multiply
    292,478,010.64x = 438,712,587.32 × 71,151,434.57
  4. Step 4: Simplify right side
    292,478,010.64x = 31,215,029,952,475,420
  5. Step 5: Solve for x
    x = 31,215,029,952,475,420/292,478,010.64
  6. Step 6: Final answer
    x = 106,726,074.50

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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.