Home / 910,335,795.81-1,256,262,893.33-513,862,209.38

Finding the Fourth Proportional to 910,335,795.81, 1,256,262,893.33 and 513,862,209.38

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Solution

The fourth proportional to 910,335,795.81, 1,256,262,893.33 and 513,862,209.38 is: 709,129,563.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,335,795.81 : 1,256,262,893.33 = 513,862,209.38 : x
  2. Step 2: Convert to fraction form
    910,335,795.81/1,256,262,893.33 = 513,862,209.38/x
  3. Step 3: Cross multiply
    910,335,795.81x = 1,256,262,893.33 × 513,862,209.38
  4. Step 4: Simplify right side
    910,335,795.81x = 645,546,025,919,814,528
  5. Step 5: Solve for x
    x = 645,546,025,919,814,528/910,335,795.81
  6. Step 6: Final answer
    x = 709,129,563.94

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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.