Home / 8,085,475.20-12,128,212.80-5,357,411.40

Finding the Fourth Proportional to 8,085,475.20, 12,128,212.80 and 5,357,411.40

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Solution

The fourth proportional to 8,085,475.20, 12,128,212.80 and 5,357,411.40 is: 8,036,117.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085,475.20 : 12,128,212.80 = 5,357,411.40 : x
  2. Step 2: Convert to fraction form
    8,085,475.20/12,128,212.80 = 5,357,411.40/x
  3. Step 3: Cross multiply
    8,085,475.20x = 12,128,212.80 × 5,357,411.40
  4. Step 4: Simplify right side
    8,085,475.20x = 64,975,825,516,345.93
  5. Step 5: Solve for x
    x = 64,975,825,516,345.93/8,085,475.20
  6. Step 6: Final answer
    x = 8,036,117.10

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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.