Home / 99,657,165.60-149,345,780.40-79,221,837.60

Finding the Fourth Proportional to 99,657,165.60, 149,345,780.40 and 79,221,837.60

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Solution

The fourth proportional to 99,657,165.60, 149,345,780.40 and 79,221,837.60 is: 118,721,489.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,657,165.60 : 149,345,780.40 = 79,221,837.60 : x
  2. Step 2: Convert to fraction form
    99,657,165.60/149,345,780.40 = 79,221,837.60/x
  3. Step 3: Cross multiply
    99,657,165.60x = 149,345,780.40 × 79,221,837.60
  4. Step 4: Simplify right side
    99,657,165.60x = 11,831,447,161,094,062
  5. Step 5: Solve for x
    x = 11,831,447,161,094,062/99,657,165.60
  6. Step 6: Final answer
    x = 118,721,489.72

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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.