Home / 13,291,648.02-18,345,886.80-8,656,981.92

Finding the Fourth Proportional to 13,291,648.02, 18,345,886.80 and 8,656,981.92

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Solution

The fourth proportional to 13,291,648.02, 18,345,886.80 and 8,656,981.92 is: 11,948,857.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291,648.02 : 18,345,886.80 = 8,656,981.92 : x
  2. Step 2: Convert to fraction form
    13,291,648.02/18,345,886.80 = 8,656,981.92/x
  3. Step 3: Cross multiply
    13,291,648.02x = 18,345,886.80 × 8,656,981.92
  4. Step 4: Simplify right side
    13,291,648.02x = 158,820,010,333,966.66
  5. Step 5: Solve for x
    x = 158,820,010,333,966.66/13,291,648.02
  6. Step 6: Final answer
    x = 11,948,857.67

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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.