Home / 91,291,779.80-125,995,575.32-56,495,679.92

Finding the Fourth Proportional to 91,291,779.80, 125,995,575.32 and 56,495,679.92

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Solution

The fourth proportional to 91,291,779.80, 125,995,575.32 and 56,495,679.92 is: 77,972,033.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,291,779.80 : 125,995,575.32 = 56,495,679.92 : x
  2. Step 2: Convert to fraction form
    91,291,779.80/125,995,575.32 = 56,495,679.92/x
  3. Step 3: Cross multiply
    91,291,779.80x = 125,995,575.32 × 56,495,679.92
  4. Step 4: Simplify right side
    91,291,779.80x = 7,118,205,694,614,971
  5. Step 5: Solve for x
    x = 7,118,205,694,614,971/91,291,779.80
  6. Step 6: Final answer
    x = 77,972,033.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.