Home / 10,389,920.60-15,553,388.10-7,849,501.40

Finding the Fourth Proportional to 10,389,920.60, 15,553,388.10 and 7,849,501.40

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Solution

The fourth proportional to 10,389,920.60, 15,553,388.10 and 7,849,501.40 is: 11,750,459.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,389,920.60 : 15,553,388.10 = 7,849,501.40 : x
  2. Step 2: Convert to fraction form
    10,389,920.60/15,553,388.10 = 7,849,501.40/x
  3. Step 3: Cross multiply
    10,389,920.60x = 15,553,388.10 × 7,849,501.40
  4. Step 4: Simplify right side
    10,389,920.60x = 122,086,341,665,693.34
  5. Step 5: Solve for x
    x = 122,086,341,665,693.34/10,389,920.60
  6. Step 6: Final answer
    x = 11,750,459.54

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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.