Home / 65,762,621.20-98,643,931.80-31,687,411.60

Finding the Fourth Proportional to 65,762,621.20, 98,643,931.80 and 31,687,411.60

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Solution

The fourth proportional to 65,762,621.20, 98,643,931.80 and 31,687,411.60 is: 47,531,117.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,762,621.20 : 98,643,931.80 = 31,687,411.60 : x
  2. Step 2: Convert to fraction form
    65,762,621.20/98,643,931.80 = 31,687,411.60/x
  3. Step 3: Cross multiply
    65,762,621.20x = 98,643,931.80 × 31,687,411.60
  4. Step 4: Simplify right side
    65,762,621.20x = 3,125,770,868,788,929
  5. Step 5: Solve for x
    x = 3,125,770,868,788,929/65,762,621.20
  6. Step 6: Final answer
    x = 47,531,117.40

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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.