Home / 42,148,931.78-63,232,422.04-12,607,442.20

Finding the Fourth Proportional to 42,148,931.78, 63,232,422.04 and 12,607,442.20

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Solution

The fourth proportional to 42,148,931.78, 63,232,422.04 and 12,607,442.20 is: 18,913,862.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,148,931.78 : 63,232,422.04 = 12,607,442.20 : x
  2. Step 2: Convert to fraction form
    42,148,931.78/63,232,422.04 = 12,607,442.20/x
  3. Step 3: Cross multiply
    42,148,931.78x = 63,232,422.04 × 12,607,442.20
  4. Step 4: Simplify right side
    42,148,931.78x = 797,199,106,035,306
  5. Step 5: Solve for x
    x = 797,199,106,035,306/42,148,931.78
  6. Step 6: Final answer
    x = 18,913,862.64

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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.