Home / 130,391,801.10-195,587,701.65-128,376,261.90

Finding the Fourth Proportional to 130,391,801.10, 195,587,701.65 and 128,376,261.90

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Solution

The fourth proportional to 130,391,801.10, 195,587,701.65 and 128,376,261.90 is: 192,564,392.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,391,801.10 : 195,587,701.65 = 128,376,261.90 : x
  2. Step 2: Convert to fraction form
    130,391,801.10/195,587,701.65 = 128,376,261.90/x
  3. Step 3: Cross multiply
    130,391,801.10x = 195,587,701.65 × 128,376,261.90
  4. Step 4: Simplify right side
    130,391,801.10x = 25,108,818,011,439,464
  5. Step 5: Solve for x
    x = 25,108,818,011,439,464/130,391,801.10
  6. Step 6: Final answer
    x = 192,564,392.85

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1.5x scale

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.