Home / 91,986,666.39-138,075,702.75-67,752,956.79

Finding the Fourth Proportional to 91,986,666.39, 138,075,702.75 and 67,752,956.79

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Solution

The fourth proportional to 91,986,666.39, 138,075,702.75 and 67,752,956.79 is: 101,699,925.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,986,666.39 : 138,075,702.75 = 67,752,956.79 : x
  2. Step 2: Convert to fraction form
    91,986,666.39/138,075,702.75 = 67,752,956.79/x
  3. Step 3: Cross multiply
    91,986,666.39x = 138,075,702.75 × 67,752,956.79
  4. Step 4: Simplify right side
    91,986,666.39x = 9,355,037,122,169,636
  5. Step 5: Solve for x
    x = 9,355,037,122,169,636/91,986,666.39
  6. Step 6: Final answer
    x = 101,699,925.54

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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.