Home / 42,120,106.20-63,180,159.30-35,317,661.40

Finding the Fourth Proportional to 42,120,106.20, 63,180,159.30 and 35,317,661.40

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Solution

The fourth proportional to 42,120,106.20, 63,180,159.30 and 35,317,661.40 is: 52,976,492.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,120,106.20 : 63,180,159.30 = 35,317,661.40 : x
  2. Step 2: Convert to fraction form
    42,120,106.20/63,180,159.30 = 35,317,661.40/x
  3. Step 3: Cross multiply
    42,120,106.20x = 63,180,159.30 × 35,317,661.40
  4. Step 4: Simplify right side
    42,120,106.20x = 2,231,375,473,355,460.75
  5. Step 5: Solve for x
    x = 2,231,375,473,355,460.75/42,120,106.20
  6. Step 6: Final answer
    x = 52,976,492.10

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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.