Home / 870,721,151.50-1,201,595,203.65-479,580,575.50

Finding the Fourth Proportional to 870,721,151.50, 1,201,595,203.65 and 479,580,575.50

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Solution

The fourth proportional to 870,721,151.50, 1,201,595,203.65 and 479,580,575.50 is: 661,821,202.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,721,151.50 : 1,201,595,203.65 = 479,580,575.50 : x
  2. Step 2: Convert to fraction form
    870,721,151.50/1,201,595,203.65 = 479,580,575.50/x
  3. Step 3: Cross multiply
    870,721,151.50x = 1,201,595,203.65 × 479,580,575.50
  4. Step 4: Simplify right side
    870,721,151.50x = 576,261,719,284,506,752
  5. Step 5: Solve for x
    x = 576,261,719,284,506,752/870,721,151.50
  6. Step 6: Final answer
    x = 661,821,202.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.