Home / 42,669,246.40-64,003,869.60-31,331,838.40

Finding the Fourth Proportional to 42,669,246.40, 64,003,869.60 and 31,331,838.40

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Solution

The fourth proportional to 42,669,246.40, 64,003,869.60 and 31,331,838.40 is: 46,997,757.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,669,246.40 : 64,003,869.60 = 31,331,838.40 : x
  2. Step 2: Convert to fraction form
    42,669,246.40/64,003,869.60 = 31,331,838.40/x
  3. Step 3: Cross multiply
    42,669,246.40x = 64,003,869.60 × 31,331,838.40
  4. Step 4: Simplify right side
    42,669,246.40x = 2,005,358,899,281,872.50
  5. Step 5: Solve for x
    x = 2,005,358,899,281,872.50/42,669,246.40
  6. Step 6: Final answer
    x = 46,997,757.60

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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.