Home / 8,319,164.80-12,478,747.20-5,113,897.60

Finding the Fourth Proportional to 8,319,164.80, 12,478,747.20 and 5,113,897.60

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Solution

The fourth proportional to 8,319,164.80, 12,478,747.20 and 5,113,897.60 is: 7,670,846.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319,164.80 : 12,478,747.20 = 5,113,897.60 : x
  2. Step 2: Convert to fraction form
    8,319,164.80/12,478,747.20 = 5,113,897.60/x
  3. Step 3: Cross multiply
    8,319,164.80x = 12,478,747.20 × 5,113,897.60
  4. Step 4: Simplify right side
    8,319,164.80x = 63,815,035,357,086.71
  5. Step 5: Solve for x
    x = 63,815,035,357,086.71/8,319,164.80
  6. Step 6: Final answer
    x = 7,670,846.40

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1.5x scale

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.