Home / 425,570,074.20-638,355,111.30-102,453,946.20

Finding the Fourth Proportional to 425,570,074.20, 638,355,111.30 and 102,453,946.20

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Solution

The fourth proportional to 425,570,074.20, 638,355,111.30 and 102,453,946.20 is: 153,680,919.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,570,074.20 : 638,355,111.30 = 102,453,946.20 : x
  2. Step 2: Convert to fraction form
    425,570,074.20/638,355,111.30 = 102,453,946.20/x
  3. Step 3: Cross multiply
    425,570,074.20x = 638,355,111.30 × 102,453,946.20
  4. Step 4: Simplify right side
    425,570,074.20x = 65,402,000,229,625,208
  5. Step 5: Solve for x
    x = 65,402,000,229,625,208/425,570,074.20
  6. Step 6: Final answer
    x = 153,680,919.30

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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.