Home / 13,146,875.10-19,720,312.65-7,478,171.10

Finding the Fourth Proportional to 13,146,875.10, 19,720,312.65 and 7,478,171.10

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Solution

The fourth proportional to 13,146,875.10, 19,720,312.65 and 7,478,171.10 is: 11,217,256.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,146,875.10 : 19,720,312.65 = 7,478,171.10 : x
  2. Step 2: Convert to fraction form
    13,146,875.10/19,720,312.65 = 7,478,171.10/x
  3. Step 3: Cross multiply
    13,146,875.10x = 19,720,312.65 × 7,478,171.10
  4. Step 4: Simplify right side
    13,146,875.10x = 147,471,872,142,194.41
  5. Step 5: Solve for x
    x = 147,471,872,142,194.41/13,146,875.10
  6. Step 6: Final answer
    x = 11,217,256.65

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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.