Home / 91,986,670.40-138,075,708.76-67,752,960.80

Finding the Fourth Proportional to 91,986,670.40, 138,075,708.76 and 67,752,960.80

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Solution

The fourth proportional to 91,986,670.40, 138,075,708.76 and 67,752,960.80 is: 101,699,931.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,986,670.40 : 138,075,708.76 = 67,752,960.80 : x
  2. Step 2: Convert to fraction form
    91,986,670.40/138,075,708.76 = 67,752,960.80/x
  3. Step 3: Cross multiply
    91,986,670.40x = 138,075,708.76 × 67,752,960.80
  4. Step 4: Simplify right side
    91,986,670.40x = 9,355,038,083,048,496
  5. Step 5: Solve for x
    x = 9,355,038,083,048,496/91,986,670.40
  6. Step 6: Final answer
    x = 101,699,931.55

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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.