Home / 65,697,200.19-90,632,001.74-42,499,807.83

Finding the Fourth Proportional to 65,697,200.19, 90,632,001.74 and 42,499,807.83

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Solution

The fourth proportional to 65,697,200.19, 90,632,001.74 and 42,499,807.83 is: 58,630,240.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,697,200.19 : 90,632,001.74 = 42,499,807.83 : x
  2. Step 2: Convert to fraction form
    65,697,200.19/90,632,001.74 = 42,499,807.83/x
  3. Step 3: Cross multiply
    65,697,200.19x = 90,632,001.74 × 42,499,807.83
  4. Step 4: Simplify right side
    65,697,200.19x = 3,851,842,656,985,726.50
  5. Step 5: Solve for x
    x = 3,851,842,656,985,726.50/65,697,200.19
  6. Step 6: Final answer
    x = 58,630,240.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.