Home / 1,121,641,080.68-1,680,957,723.72-872,946,641.71

Finding the Fourth Proportional to 1,121,641,080.68, 1,680,957,723.72 and 872,946,641.71

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Solution

The fourth proportional to 1,121,641,080.68, 1,680,957,723.72 and 872,946,641.71 is: 1,308,249,514.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,641,080.68 : 1,680,957,723.72 = 872,946,641.71 : x
  2. Step 2: Convert to fraction form
    1,121,641,080.68/1,680,957,723.72 = 872,946,641.71/x
  3. Step 3: Cross multiply
    1,121,641,080.68x = 1,680,957,723.72 × 872,946,641.71
  4. Step 4: Simplify right side
    1,121,641,080.68x = 1,467,386,399,773,657,600
  5. Step 5: Solve for x
    x = 1,467,386,399,773,657,600/1,121,641,080.68
  6. Step 6: Final answer
    x = 1,308,249,514.97

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Double scale
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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.