Home / 71,090,851.20-106,636,276.80-65,548,118.40

Finding the Fourth Proportional to 71,090,851.20, 106,636,276.80 and 65,548,118.40

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Solution

The fourth proportional to 71,090,851.20, 106,636,276.80 and 65,548,118.40 is: 98,322,177.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,090,851.20 : 106,636,276.80 = 65,548,118.40 : x
  2. Step 2: Convert to fraction form
    71,090,851.20/106,636,276.80 = 65,548,118.40/x
  3. Step 3: Cross multiply
    71,090,851.20x = 106,636,276.80 × 65,548,118.40
  4. Step 4: Simplify right side
    71,090,851.20x = 6,989,807,297,421,573
  5. Step 5: Solve for x
    x = 6,989,807,297,421,573/71,090,851.20
  6. Step 6: Final answer
    x = 98,322,177.60

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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.