Home / 472,392,807.40-708,589,211.10-437,955,430.60

Finding the Fourth Proportional to 472,392,807.40, 708,589,211.10 and 437,955,430.60

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Solution

The fourth proportional to 472,392,807.40, 708,589,211.10 and 437,955,430.60 is: 656,933,145.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,807.40 : 708,589,211.10 = 437,955,430.60 : x
  2. Step 2: Convert to fraction form
    472,392,807.40/708,589,211.10 = 437,955,430.60/x
  3. Step 3: Cross multiply
    472,392,807.40x = 708,589,211.10 × 437,955,430.60
  4. Step 4: Simplify right side
    472,392,807.40x = 310,330,493,065,814,848
  5. Step 5: Solve for x
    x = 310,330,493,065,814,848/472,392,807.40
  6. Step 6: Final answer
    x = 656,933,145.90

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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.