Home / 979,776,139.20-1,469,664,208.80-904,949,246.40

Finding the Fourth Proportional to 979,776,139.20, 1,469,664,208.80 and 904,949,246.40

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Solution

The fourth proportional to 979,776,139.20, 1,469,664,208.80 and 904,949,246.40 is: 1,357,423,869.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,776,139.20 : 1,469,664,208.80 = 904,949,246.40 : x
  2. Step 2: Convert to fraction form
    979,776,139.20/1,469,664,208.80 = 904,949,246.40/x
  3. Step 3: Cross multiply
    979,776,139.20x = 1,469,664,208.80 × 904,949,246.40
  4. Step 4: Simplify right side
    979,776,139.20x = 1,329,971,518,214,612,224
  5. Step 5: Solve for x
    x = 1,329,971,518,214,612,224/979,776,139.20
  6. Step 6: Final answer
    x = 1,357,423,869.60

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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.