Home / 91,037,278.95-125,641,180.91-55,778,483.28

Finding the Fourth Proportional to 91,037,278.95, 125,641,180.91 and 55,778,483.28

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Solution

The fourth proportional to 91,037,278.95, 125,641,180.91 and 55,778,483.28 is: 76,980,272.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,037,278.95 : 125,641,180.91 = 55,778,483.28 : x
  2. Step 2: Convert to fraction form
    91,037,278.95/125,641,180.91 = 55,778,483.28/x
  3. Step 3: Cross multiply
    91,037,278.95x = 125,641,180.91 × 55,778,483.28
  4. Step 4: Simplify right side
    91,037,278.95x = 7,008,074,508,667,890
  5. Step 5: Solve for x
    x = 7,008,074,508,667,890/91,037,278.95
  6. Step 6: Final answer
    x = 76,980,272.14

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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.