Home / 42,492,920.40-63,739,380.60-38,949,980.40

Finding the Fourth Proportional to 42,492,920.40, 63,739,380.60 and 38,949,980.40

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Solution

The fourth proportional to 42,492,920.40, 63,739,380.60 and 38,949,980.40 is: 58,424,970.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,492,920.40 : 63,739,380.60 = 38,949,980.40 : x
  2. Step 2: Convert to fraction form
    42,492,920.40/63,739,380.60 = 38,949,980.40/x
  3. Step 3: Cross multiply
    42,492,920.40x = 63,739,380.60 × 38,949,980.40
  4. Step 4: Simplify right side
    42,492,920.40x = 2,482,647,625,078,140
  5. Step 5: Solve for x
    x = 2,482,647,625,078,140/42,492,920.40
  6. Step 6: Final answer
    x = 58,424,970.60

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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.