Home / 15,700,602.09-21,663,655.84-9,172,970.35

Finding the Fourth Proportional to 15,700,602.09, 21,663,655.84 and 9,172,970.35

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Solution

The fourth proportional to 15,700,602.09, 21,663,655.84 and 9,172,970.35 is: 12,656,844.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,700,602.09 : 21,663,655.84 = 9,172,970.35 : x
  2. Step 2: Convert to fraction form
    15,700,602.09/21,663,655.84 = 9,172,970.35/x
  3. Step 3: Cross multiply
    15,700,602.09x = 21,663,655.84 × 9,172,970.35
  4. Step 4: Simplify right side
    15,700,602.09x = 198,720,072,650,231.41
  5. Step 5: Solve for x
    x = 198,720,072,650,231.41/15,700,602.09
  6. Step 6: Final answer
    x = 12,656,844.08

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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.