Home / 125,267,263.78-172,872,787.95-72,343,014.08

Finding the Fourth Proportional to 125,267,263.78, 172,872,787.95 and 72,343,014.08

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Solution

The fourth proportional to 125,267,263.78, 172,872,787.95 and 72,343,014.08 is: 99,835,648.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,267,263.78 : 172,872,787.95 = 72,343,014.08 : x
  2. Step 2: Convert to fraction form
    125,267,263.78/172,872,787.95 = 72,343,014.08/x
  3. Step 3: Cross multiply
    125,267,263.78x = 172,872,787.95 × 72,343,014.08
  4. Step 4: Simplify right side
    125,267,263.78x = 12,506,138,532,824,266
  5. Step 5: Solve for x
    x = 12,506,138,532,824,266/125,267,263.78
  6. Step 6: Final answer
    x = 99,835,648.64

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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.