Home / 74,709,061.20-112,063,591.80-45,861,656.40

Finding the Fourth Proportional to 74,709,061.20, 112,063,591.80 and 45,861,656.40

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Solution

The fourth proportional to 74,709,061.20, 112,063,591.80 and 45,861,656.40 is: 68,792,484.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,709,061.20 : 112,063,591.80 = 45,861,656.40 : x
  2. Step 2: Convert to fraction form
    74,709,061.20/112,063,591.80 = 45,861,656.40/x
  3. Step 3: Cross multiply
    74,709,061.20x = 112,063,591.80 × 45,861,656.40
  4. Step 4: Simplify right side
    74,709,061.20x = 5,139,421,942,081,457
  5. Step 5: Solve for x
    x = 5,139,421,942,081,457/74,709,061.20
  6. Step 6: Final answer
    x = 68,792,484.60

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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.