Home / 72,838,434.90-100,514,049.09-39,799,818.21

Finding the Fourth Proportional to 72,838,434.90, 100,514,049.09 and 39,799,818.21

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Solution

The fourth proportional to 72,838,434.90, 100,514,049.09 and 39,799,818.21 is: 54,922,114.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,838,434.90 : 100,514,049.09 = 39,799,818.21 : x
  2. Step 2: Convert to fraction form
    72,838,434.90/100,514,049.09 = 39,799,818.21/x
  3. Step 3: Cross multiply
    72,838,434.90x = 100,514,049.09 × 39,799,818.21
  4. Step 4: Simplify right side
    72,838,434.90x = 4,000,440,881,333,016
  5. Step 5: Solve for x
    x = 4,000,440,881,333,016/72,838,434.90
  6. Step 6: Final answer
    x = 54,922,114.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.