Home / 12,000,001.20-18,000,001.80-4,812,644.40

Finding the Fourth Proportional to 12,000,001.20, 18,000,001.80 and 4,812,644.40

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Solution

The fourth proportional to 12,000,001.20, 18,000,001.80 and 4,812,644.40 is: 7,218,966.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,000,001.20 : 18,000,001.80 = 4,812,644.40 : x
  2. Step 2: Convert to fraction form
    12,000,001.20/18,000,001.80 = 4,812,644.40/x
  3. Step 3: Cross multiply
    12,000,001.20x = 18,000,001.80 × 4,812,644.40
  4. Step 4: Simplify right side
    12,000,001.20x = 86,627,607,862,759.94
  5. Step 5: Solve for x
    x = 86,627,607,862,759.94/12,000,001.20
  6. Step 6: Final answer
    x = 7,218,966.60

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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.