Home / 646,689,996.10-970,020,988.47-180,338,976.71

Finding the Fourth Proportional to 646,689,996.10, 970,020,988.47 and 180,338,976.71

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Solution

The fourth proportional to 646,689,996.10, 970,020,988.47 and 180,338,976.71 is: 270,504,559.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,689,996.10 : 970,020,988.47 = 180,338,976.71 : x
  2. Step 2: Convert to fraction form
    646,689,996.10/970,020,988.47 = 180,338,976.71/x
  3. Step 3: Cross multiply
    646,689,996.10x = 970,020,988.47 × 180,338,976.71
  4. Step 4: Simplify right side
    646,689,996.10x = 174,932,592,447,902,528
  5. Step 5: Solve for x
    x = 174,932,592,447,902,528/646,689,996.10
  6. Step 6: Final answer
    x = 270,504,559.38

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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.