Home / 457,344,886.40-686,017,329.60-263,853,123.20

Finding the Fourth Proportional to 457,344,886.40, 686,017,329.60 and 263,853,123.20

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Solution

The fourth proportional to 457,344,886.40, 686,017,329.60 and 263,853,123.20 is: 395,779,684.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,344,886.40 : 686,017,329.60 = 263,853,123.20 : x
  2. Step 2: Convert to fraction form
    457,344,886.40/686,017,329.60 = 263,853,123.20/x
  3. Step 3: Cross multiply
    457,344,886.40x = 686,017,329.60 × 263,853,123.20
  4. Step 4: Simplify right side
    457,344,886.40x = 181,007,814,984,283,808
  5. Step 5: Solve for x
    x = 181,007,814,984,283,808/457,344,886.40
  6. Step 6: Final answer
    x = 395,779,684.80

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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.