Home / 13,248,001.20-19,872,001.80-8,209,153.20

Finding the Fourth Proportional to 13,248,001.20, 19,872,001.80 and 8,209,153.20

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Solution

The fourth proportional to 13,248,001.20, 19,872,001.80 and 8,209,153.20 is: 12,313,729.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,248,001.20 : 19,872,001.80 = 8,209,153.20 : x
  2. Step 2: Convert to fraction form
    13,248,001.20/19,872,001.80 = 8,209,153.20/x
  3. Step 3: Cross multiply
    13,248,001.20x = 19,872,001.80 × 8,209,153.20
  4. Step 4: Simplify right side
    13,248,001.20x = 163,132,307,166,875.78
  5. Step 5: Solve for x
    x = 163,132,307,166,875.78/13,248,001.20
  6. Step 6: Final answer
    x = 12,313,729.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.