Home / 430,278,246.32-645,549,089.02-220,337,578.04

Finding the Fourth Proportional to 430,278,246.32, 645,549,089.02 and 220,337,578.04

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Solution

The fourth proportional to 430,278,246.32, 645,549,089.02 and 220,337,578.04 is: 330,573,818.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,278,246.32 : 645,549,089.02 = 220,337,578.04 : x
  2. Step 2: Convert to fraction form
    430,278,246.32/645,549,089.02 = 220,337,578.04/x
  3. Step 3: Cross multiply
    430,278,246.32x = 645,549,089.02 × 220,337,578.04
  4. Step 4: Simplify right side
    430,278,246.32x = 142,238,722,776,816,576
  5. Step 5: Solve for x
    x = 142,238,722,776,816,576/430,278,246.32
  6. Step 6: Final answer
    x = 330,573,818.21

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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.