Home / 431,277,909.07-646,686,695.52-223,807,421.41

Finding the Fourth Proportional to 431,277,909.07, 646,686,695.52 and 223,807,421.41

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Solution

The fourth proportional to 431,277,909.07, 646,686,695.52 and 223,807,421.41 is: 335,591,688.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,277,909.07 : 646,686,695.52 = 223,807,421.41 : x
  2. Step 2: Convert to fraction form
    431,277,909.07/646,686,695.52 = 223,807,421.41/x
  3. Step 3: Cross multiply
    431,277,909.07x = 646,686,695.52 × 223,807,421.41
  4. Step 4: Simplify right side
    431,277,909.07x = 144,733,281,784,484,992
  5. Step 5: Solve for x
    x = 144,733,281,784,484,992/431,277,909.07
  6. Step 6: Final answer
    x = 335,591,688.66

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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.