Home / 30,690,452.52-42,349,807.20-16,938,530.16

Finding the Fourth Proportional to 30,690,452.52, 42,349,807.20 and 16,938,530.16

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Solution

The fourth proportional to 30,690,452.52, 42,349,807.20 and 16,938,530.16 is: 23,373,506.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,690,452.52 : 42,349,807.20 = 16,938,530.16 : x
  2. Step 2: Convert to fraction form
    30,690,452.52/42,349,807.20 = 16,938,530.16/x
  3. Step 3: Cross multiply
    30,690,452.52x = 42,349,807.20 × 16,938,530.16
  4. Step 4: Simplify right side
    30,690,452.52x = 717,343,486,527,385.25
  5. Step 5: Solve for x
    x = 717,343,486,527,385.25/30,690,452.52
  6. Step 6: Final answer
    x = 23,373,506.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.