Home / 15,272,679.60-21,075,853.95-8,657,881.38

Finding the Fourth Proportional to 15,272,679.60, 21,075,853.95 and 8,657,881.38

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Solution

The fourth proportional to 15,272,679.60, 21,075,853.95 and 8,657,881.38 is: 11,947,624.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,272,679.60 : 21,075,853.95 = 8,657,881.38 : x
  2. Step 2: Convert to fraction form
    15,272,679.60/21,075,853.95 = 8,657,881.38/x
  3. Step 3: Cross multiply
    15,272,679.60x = 21,075,853.95 × 8,657,881.38
  4. Step 4: Simplify right side
    15,272,679.60x = 182,472,243,481,304.47
  5. Step 5: Solve for x
    x = 182,472,243,481,304.47/15,272,679.60
  6. Step 6: Final answer
    x = 11,947,624.66

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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.