Home / 19,686,904.20-29,530,356.30-12,884,459.40

Finding the Fourth Proportional to 19,686,904.20, 29,530,356.30 and 12,884,459.40

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Solution

The fourth proportional to 19,686,904.20, 29,530,356.30 and 12,884,459.40 is: 19,326,689.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,686,904.20 : 29,530,356.30 = 12,884,459.40 : x
  2. Step 2: Convert to fraction form
    19,686,904.20/29,530,356.30 = 12,884,459.40/x
  3. Step 3: Cross multiply
    19,686,904.20x = 29,530,356.30 × 12,884,459.40
  4. Step 4: Simplify right side
    19,686,904.20x = 380,482,676,814,884.25
  5. Step 5: Solve for x
    x = 380,482,676,814,884.25/19,686,904.20
  6. Step 6: Final answer
    x = 19,326,689.10

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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.