Home / 97,209,631.20-145,814,446.80-85,872,223.20

Finding the Fourth Proportional to 97,209,631.20, 145,814,446.80 and 85,872,223.20

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Solution

The fourth proportional to 97,209,631.20, 145,814,446.80 and 85,872,223.20 is: 128,808,334.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,209,631.20 : 145,814,446.80 = 85,872,223.20 : x
  2. Step 2: Convert to fraction form
    97,209,631.20/145,814,446.80 = 85,872,223.20/x
  3. Step 3: Cross multiply
    97,209,631.20x = 145,814,446.80 × 85,872,223.20
  4. Step 4: Simplify right side
    97,209,631.20x = 12,521,410,721,394,128
  5. Step 5: Solve for x
    x = 12,521,410,721,394,128/97,209,631.20
  6. Step 6: Final answer
    x = 128,808,334.80

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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.