Home / 7,128,117.60-10,671,181.20-6,712,879.20

Finding the Fourth Proportional to 7,128,117.60, 10,671,181.20 and 6,712,879.20

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Solution

The fourth proportional to 7,128,117.60, 10,671,181.20 and 6,712,879.20 is: 10,049,546.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,128,117.60 : 10,671,181.20 = 6,712,879.20 : x
  2. Step 2: Convert to fraction form
    7,128,117.60/10,671,181.20 = 6,712,879.20/x
  3. Step 3: Cross multiply
    7,128,117.60x = 10,671,181.20 × 6,712,879.20
  4. Step 4: Simplify right side
    7,128,117.60x = 71,634,350,316,911.03
  5. Step 5: Solve for x
    x = 71,634,350,316,911.03/7,128,117.60
  6. Step 6: Final answer
    x = 10,049,546.65

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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.