Home / 141,875,461.80-212,813,192.70-77,154,258.60

Finding the Fourth Proportional to 141,875,461.80, 212,813,192.70 and 77,154,258.60

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Solution

The fourth proportional to 141,875,461.80, 212,813,192.70 and 77,154,258.60 is: 115,731,387.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,875,461.80 : 212,813,192.70 = 77,154,258.60 : x
  2. Step 2: Convert to fraction form
    141,875,461.80/212,813,192.70 = 77,154,258.60/x
  3. Step 3: Cross multiply
    141,875,461.80x = 212,813,192.70 × 77,154,258.60
  4. Step 4: Simplify right side
    141,875,461.80x = 16,419,444,103,067,430
  5. Step 5: Solve for x
    x = 16,419,444,103,067,430/141,875,461.80
  6. Step 6: Final answer
    x = 115,731,387.90

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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.