Home / 66,428,938.20-99,643,407.30-43,735,459.80

Finding the Fourth Proportional to 66,428,938.20, 99,643,407.30 and 43,735,459.80

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Solution

The fourth proportional to 66,428,938.20, 99,643,407.30 and 43,735,459.80 is: 65,603,189.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,428,938.20 : 99,643,407.30 = 43,735,459.80 : x
  2. Step 2: Convert to fraction form
    66,428,938.20/99,643,407.30 = 43,735,459.80/x
  3. Step 3: Cross multiply
    66,428,938.20x = 99,643,407.30 × 43,735,459.80
  4. Step 4: Simplify right side
    66,428,938.20x = 4,357,950,234,304,176
  5. Step 5: Solve for x
    x = 4,357,950,234,304,176/66,428,938.20
  6. Step 6: Final answer
    x = 65,603,189.70

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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.