Home / 139,758,655.82-209,630,356.14-42,714,330.62

Finding the Fourth Proportional to 139,758,655.82, 209,630,356.14 and 42,714,330.62

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Solution

The fourth proportional to 139,758,655.82, 209,630,356.14 and 42,714,330.62 is: 64,069,164.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,758,655.82 : 209,630,356.14 = 42,714,330.62 : x
  2. Step 2: Convert to fraction form
    139,758,655.82/209,630,356.14 = 42,714,330.62/x
  3. Step 3: Cross multiply
    139,758,655.82x = 209,630,356.14 × 42,714,330.62
  4. Step 4: Simplify right side
    139,758,655.82x = 8,954,220,340,152,306
  5. Step 5: Solve for x
    x = 8,954,220,340,152,306/139,758,655.82
  6. Step 6: Final answer
    x = 64,069,164.72

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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.