Home / 19,574,423.20-29,361,634.80-12,771,978.40

Finding the Fourth Proportional to 19,574,423.20, 29,361,634.80 and 12,771,978.40

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Solution

The fourth proportional to 19,574,423.20, 29,361,634.80 and 12,771,978.40 is: 19,157,967.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,574,423.20 : 29,361,634.80 = 12,771,978.40 : x
  2. Step 2: Convert to fraction form
    19,574,423.20/29,361,634.80 = 12,771,978.40/x
  3. Step 3: Cross multiply
    19,574,423.20x = 29,361,634.80 × 12,771,978.40
  4. Step 4: Simplify right side
    19,574,423.20x = 375,006,165,454,288.31
  5. Step 5: Solve for x
    x = 375,006,165,454,288.31/19,574,423.20
  6. Step 6: Final answer
    x = 19,157,967.60

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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.