Home / 40,931,495.10-61,398,226.80-12,178,568.70

Finding the Fourth Proportional to 40,931,495.10, 61,398,226.80 and 12,178,568.70

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Solution

The fourth proportional to 40,931,495.10, 61,398,226.80 and 12,178,568.70 is: 18,268,145.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,931,495.10 : 61,398,226.80 = 12,178,568.70 : x
  2. Step 2: Convert to fraction form
    40,931,495.10/61,398,226.80 = 12,178,568.70/x
  3. Step 3: Cross multiply
    40,931,495.10x = 61,398,226.80 × 12,178,568.70
  4. Step 4: Simplify right side
    40,931,495.10x = 747,742,523,141,981.12
  5. Step 5: Solve for x
    x = 747,742,523,141,981.12/40,931,495.10
  6. Step 6: Final answer
    x = 18,268,145.87

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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.