Home / 257,329,078.40-385,993,617.60-65,852,854.40

Finding the Fourth Proportional to 257,329,078.40, 385,993,617.60 and 65,852,854.40

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Solution

The fourth proportional to 257,329,078.40, 385,993,617.60 and 65,852,854.40 is: 98,779,281.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,329,078.40 : 385,993,617.60 = 65,852,854.40 : x
  2. Step 2: Convert to fraction form
    257,329,078.40/385,993,617.60 = 65,852,854.40/x
  3. Step 3: Cross multiply
    257,329,078.40x = 385,993,617.60 × 65,852,854.40
  4. Step 4: Simplify right side
    257,329,078.40x = 25,418,781,499,142,080
  5. Step 5: Solve for x
    x = 25,418,781,499,142,080/257,329,078.40
  6. Step 6: Final answer
    x = 98,779,281.60

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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.