Home / 156,565,939.22-216,048,395.81-90,490,717.14

Finding the Fourth Proportional to 156,565,939.22, 216,048,395.81 and 90,490,717.14

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Solution

The fourth proportional to 156,565,939.22, 216,048,395.81 and 90,490,717.14 is: 124,869,907.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,565,939.22 : 216,048,395.81 = 90,490,717.14 : x
  2. Step 2: Convert to fraction form
    156,565,939.22/216,048,395.81 = 90,490,717.14/x
  3. Step 3: Cross multiply
    156,565,939.22x = 216,048,395.81 × 90,490,717.14
  4. Step 4: Simplify right side
    156,565,939.22x = 19,550,374,273,793,472
  5. Step 5: Solve for x
    x = 19,550,374,273,793,472/156,565,939.22
  6. Step 6: Final answer
    x = 124,869,907.03

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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.