Home / 7,125,871.20-10,688,806.80-2,077,346.40

Finding the Fourth Proportional to 7,125,871.20, 10,688,806.80 and 2,077,346.40

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Solution

The fourth proportional to 7,125,871.20, 10,688,806.80 and 2,077,346.40 is: 3,116,019.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,125,871.20 : 10,688,806.80 = 2,077,346.40 : x
  2. Step 2: Convert to fraction form
    7,125,871.20/10,688,806.80 = 2,077,346.40/x
  3. Step 3: Cross multiply
    7,125,871.20x = 10,688,806.80 × 2,077,346.40
  4. Step 4: Simplify right side
    7,125,871.20x = 22,204,354,326,275.52
  5. Step 5: Solve for x
    x = 22,204,354,326,275.52/7,125,871.20
  6. Step 6: Final answer
    x = 3,116,019.60

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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.