Home / 89,879,807.40-134,819,711.10-74,750,821.80

Finding the Fourth Proportional to 89,879,807.40, 134,819,711.10 and 74,750,821.80

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Solution

The fourth proportional to 89,879,807.40, 134,819,711.10 and 74,750,821.80 is: 112,126,232.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,879,807.40 : 134,819,711.10 = 74,750,821.80 : x
  2. Step 2: Convert to fraction form
    89,879,807.40/134,819,711.10 = 74,750,821.80/x
  3. Step 3: Cross multiply
    89,879,807.40x = 134,819,711.10 × 74,750,821.80
  4. Step 4: Simplify right side
    89,879,807.40x = 10,077,884,199,563,582
  5. Step 5: Solve for x
    x = 10,077,884,199,563,582/89,879,807.40
  6. Step 6: Final answer
    x = 112,126,232.70

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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.