Home / 42,487,175.50-63,730,665.98-18,210,360.94

Finding the Fourth Proportional to 42,487,175.50, 63,730,665.98 and 18,210,360.94

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Solution

The fourth proportional to 42,487,175.50, 63,730,665.98 and 18,210,360.94 is: 27,315,499.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,487,175.50 : 63,730,665.98 = 18,210,360.94 : x
  2. Step 2: Convert to fraction form
    42,487,175.50/63,730,665.98 = 18,210,360.94/x
  3. Step 3: Cross multiply
    42,487,175.50x = 63,730,665.98 × 18,210,360.94
  4. Step 4: Simplify right side
    42,487,175.50x = 1,160,558,430,442,378.75
  5. Step 5: Solve for x
    x = 1,160,558,430,442,378.75/42,487,175.50
  6. Step 6: Final answer
    x = 27,315,499.72

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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.