Home / 928,537,974.64-1,281,382,361.90-510,841,291.87

Finding the Fourth Proportional to 928,537,974.64, 1,281,382,361.90 and 510,841,291.87

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Solution

The fourth proportional to 928,537,974.64, 1,281,382,361.90 and 510,841,291.87 is: 704,960,959.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,537,974.64 : 1,281,382,361.90 = 510,841,291.87 : x
  2. Step 2: Convert to fraction form
    928,537,974.64/1,281,382,361.90 = 510,841,291.87/x
  3. Step 3: Cross multiply
    928,537,974.64x = 1,281,382,361.90 × 510,841,291.87
  4. Step 4: Simplify right side
    928,537,974.64x = 654,583,021,132,427,904
  5. Step 5: Solve for x
    x = 654,583,021,132,427,904/928,537,974.64
  6. Step 6: Final answer
    x = 704,960,959.07

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1.5x scale

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.