Home / 354,337,043.40-531,505,565.10-138,926,291.40

Finding the Fourth Proportional to 354,337,043.40, 531,505,565.10 and 138,926,291.40

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Solution

The fourth proportional to 354,337,043.40, 531,505,565.10 and 138,926,291.40 is: 208,389,437.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,337,043.40 : 531,505,565.10 = 138,926,291.40 : x
  2. Step 2: Convert to fraction form
    354,337,043.40/531,505,565.10 = 138,926,291.40/x
  3. Step 3: Cross multiply
    354,337,043.40x = 531,505,565.10 × 138,926,291.40
  4. Step 4: Simplify right side
    354,337,043.40x = 73,840,097,017,804,272
  5. Step 5: Solve for x
    x = 73,840,097,017,804,272/354,337,043.40
  6. Step 6: Final answer
    x = 208,389,437.10

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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.