Home / 159,426,381.60-238,989,106.80-86,535,712.80

Finding the Fourth Proportional to 159,426,381.60, 238,989,106.80 and 86,535,712.80

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Solution

The fourth proportional to 159,426,381.60, 238,989,106.80 and 86,535,712.80 is: 129,721,897.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,426,381.60 : 238,989,106.80 = 86,535,712.80 : x
  2. Step 2: Convert to fraction form
    159,426,381.60/238,989,106.80 = 86,535,712.80/x
  3. Step 3: Cross multiply
    159,426,381.60x = 238,989,106.80 × 86,535,712.80
  4. Step 4: Simplify right side
    159,426,381.60x = 20,681,092,708,373,328
  5. Step 5: Solve for x
    x = 20,681,092,708,373,328/159,426,381.60
  6. Step 6: Final answer
    x = 129,721,897.35

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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.