Home / 1,121,641,081.68-1,680,957,725.22-872,946,642.71

Finding the Fourth Proportional to 1,121,641,081.68, 1,680,957,725.22 and 872,946,642.71

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Solution

The fourth proportional to 1,121,641,081.68, 1,680,957,725.22 and 872,946,642.71 is: 1,308,249,516.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,641,081.68 : 1,680,957,725.22 = 872,946,642.71 : x
  2. Step 2: Convert to fraction form
    1,121,641,081.68/1,680,957,725.22 = 872,946,642.71/x
  3. Step 3: Cross multiply
    1,121,641,081.68x = 1,680,957,725.22 × 872,946,642.71
  4. Step 4: Simplify right side
    1,121,641,081.68x = 1,467,386,402,768,237,824
  5. Step 5: Solve for x
    x = 1,467,386,402,768,237,824/1,121,641,081.68
  6. Step 6: Final answer
    x = 1,308,249,516.48

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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.