Home / 15,700,538.35-21,663,566.61-9,172,907.11

Finding the Fourth Proportional to 15,700,538.35, 21,663,566.61 and 9,172,907.11

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Solution

The fourth proportional to 15,700,538.35, 21,663,566.61 and 9,172,907.11 is: 12,656,756.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,700,538.35 : 21,663,566.61 = 9,172,907.11 : x
  2. Step 2: Convert to fraction form
    15,700,538.35/21,663,566.61 = 9,172,907.11/x
  3. Step 3: Cross multiply
    15,700,538.35x = 21,663,566.61 × 9,172,907.11
  4. Step 4: Simplify right side
    15,700,538.35x = 198,717,884,184,827.59
  5. Step 5: Solve for x
    x = 198,717,884,184,827.59/15,700,538.35
  6. Step 6: Final answer
    x = 12,656,756.08

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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.