Home / 15,423,750.09-21,272,364.28-13,559,178.98

Finding the Fourth Proportional to 15,423,750.09, 21,272,364.28 and 13,559,178.98

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Solution

The fourth proportional to 15,423,750.09, 21,272,364.28 and 13,559,178.98 is: 18,700,756.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,423,750.09 : 21,272,364.28 = 13,559,178.98 : x
  2. Step 2: Convert to fraction form
    15,423,750.09/21,272,364.28 = 13,559,178.98/x
  3. Step 3: Cross multiply
    15,423,750.09x = 21,272,364.28 × 13,559,178.98
  4. Step 4: Simplify right side
    15,423,750.09x = 288,435,794,700,317.69
  5. Step 5: Solve for x
    x = 288,435,794,700,317.69/15,423,750.09
  6. Step 6: Final answer
    x = 18,700,756.50

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1.5x scale

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.