Home / 12,943,630.05-19,415,445.08-12,145,812.45

Finding the Fourth Proportional to 12,943,630.05, 19,415,445.08 and 12,145,812.45

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Solution

The fourth proportional to 12,943,630.05, 19,415,445.08 and 12,145,812.45 is: 18,218,718.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,943,630.05 : 19,415,445.08 = 12,145,812.45 : x
  2. Step 2: Convert to fraction form
    12,943,630.05/19,415,445.08 = 12,145,812.45/x
  3. Step 3: Cross multiply
    12,943,630.05x = 19,415,445.08 × 12,145,812.45
  4. Step 4: Simplify right side
    12,943,630.05x = 235,816,354,514,226.16
  5. Step 5: Solve for x
    x = 235,816,354,514,226.16/12,943,630.05
  6. Step 6: Final answer
    x = 18,218,718.68

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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.