Home / 18,805,629.40-28,208,444.10-12,087,165.40

Finding the Fourth Proportional to 18,805,629.40, 28,208,444.10 and 12,087,165.40

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Solution

The fourth proportional to 18,805,629.40, 28,208,444.10 and 12,087,165.40 is: 18,130,748.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,805,629.40 : 28,208,444.10 = 12,087,165.40 : x
  2. Step 2: Convert to fraction form
    18,805,629.40/28,208,444.10 = 12,087,165.40/x
  3. Step 3: Cross multiply
    18,805,629.40x = 28,208,444.10 × 12,087,165.40
  4. Step 4: Simplify right side
    18,805,629.40x = 340,960,129,513,354.19
  5. Step 5: Solve for x
    x = 340,960,129,513,354.19/18,805,629.40
  6. Step 6: Final answer
    x = 18,130,748.10

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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.