Home / 651,727,711.20-977,591,566.80-215,095,785.60

Finding the Fourth Proportional to 651,727,711.20, 977,591,566.80 and 215,095,785.60

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Solution

The fourth proportional to 651,727,711.20, 977,591,566.80 and 215,095,785.60 is: 322,643,678.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,727,711.20 : 977,591,566.80 = 215,095,785.60 : x
  2. Step 2: Convert to fraction form
    651,727,711.20/977,591,566.80 = 215,095,785.60/x
  3. Step 3: Cross multiply
    651,727,711.20x = 977,591,566.80 × 215,095,785.60
  4. Step 4: Simplify right side
    651,727,711.20x = 210,275,826,056,780,864
  5. Step 5: Solve for x
    x = 210,275,826,056,780,864/651,727,711.20
  6. Step 6: Final answer
    x = 322,643,678.40

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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.