Home / 73,989,437.60-110,984,156.40-70,966,128.80

Finding the Fourth Proportional to 73,989,437.60, 110,984,156.40 and 70,966,128.80

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Solution

The fourth proportional to 73,989,437.60, 110,984,156.40 and 70,966,128.80 is: 106,449,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,989,437.60 : 110,984,156.40 = 70,966,128.80 : x
  2. Step 2: Convert to fraction form
    73,989,437.60/110,984,156.40 = 70,966,128.80/x
  3. Step 3: Cross multiply
    73,989,437.60x = 110,984,156.40 × 70,966,128.80
  4. Step 4: Simplify right side
    73,989,437.60x = 7,876,115,937,841,744
  5. Step 5: Solve for x
    x = 7,876,115,937,841,744/73,989,437.60
  6. Step 6: Final answer
    x = 106,449,193.20

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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.