Home / 8,702,278.68-12,008,440.40-5,031,430.76

Finding the Fourth Proportional to 8,702,278.68, 12,008,440.40 and 5,031,430.76

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Solution

The fourth proportional to 8,702,278.68, 12,008,440.40 and 5,031,430.76 is: 6,942,967.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,702,278.68 : 12,008,440.40 = 5,031,430.76 : x
  2. Step 2: Convert to fraction form
    8,702,278.68/12,008,440.40 = 5,031,430.76/x
  3. Step 3: Cross multiply
    8,702,278.68x = 12,008,440.40 × 5,031,430.76
  4. Step 4: Simplify right side
    8,702,278.68x = 60,419,636,408,186.70
  5. Step 5: Solve for x
    x = 60,419,636,408,186.70/8,702,278.68
  6. Step 6: Final answer
    x = 6,942,967.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.