Home / 72,838,433.40-100,514,047.02-39,799,816.71

Finding the Fourth Proportional to 72,838,433.40, 100,514,047.02 and 39,799,816.71

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Solution

The fourth proportional to 72,838,433.40, 100,514,047.02 and 39,799,816.71 is: 54,922,112.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,838,433.40 : 100,514,047.02 = 39,799,816.71 : x
  2. Step 2: Convert to fraction form
    72,838,433.40/100,514,047.02 = 39,799,816.71/x
  3. Step 3: Cross multiply
    72,838,433.40x = 100,514,047.02 × 39,799,816.71
  4. Step 4: Simplify right side
    72,838,433.40x = 4,000,440,648,176,321.50
  5. Step 5: Solve for x
    x = 4,000,440,648,176,321.50/72,838,433.40
  6. Step 6: Final answer
    x = 54,922,112.70

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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.