Home / 91,966,038.98-126,865,642.65-57,145,499.78

Finding the Fourth Proportional to 91,966,038.98, 126,865,642.65 and 57,145,499.78

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Solution

The fourth proportional to 91,966,038.98, 126,865,642.65 and 57,145,499.78 is: 78,831,279.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,966,038.98 : 126,865,642.65 = 57,145,499.78 : x
  2. Step 2: Convert to fraction form
    91,966,038.98/126,865,642.65 = 57,145,499.78/x
  3. Step 3: Cross multiply
    91,966,038.98x = 126,865,642.65 × 57,145,499.78
  4. Step 4: Simplify right side
    91,966,038.98x = 7,249,800,554,145,134
  5. Step 5: Solve for x
    x = 7,249,800,554,145,134/91,966,038.98
  6. Step 6: Final answer
    x = 78,831,279.83

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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.