Home / 708,315,691.98-977,476,959.18-395,070,096.36

Finding the Fourth Proportional to 708,315,691.98, 977,476,959.18 and 395,070,096.36

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Solution

The fourth proportional to 708,315,691.98, 977,476,959.18 and 395,070,096.36 is: 545,197,460.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,315,691.98 : 977,476,959.18 = 395,070,096.36 : x
  2. Step 2: Convert to fraction form
    708,315,691.98/977,476,959.18 = 395,070,096.36/x
  3. Step 3: Cross multiply
    708,315,691.98x = 977,476,959.18 × 395,070,096.36
  4. Step 4: Simplify right side
    708,315,691.98x = 386,171,916,452,922,368
  5. Step 5: Solve for x
    x = 386,171,916,452,922,368/708,315,691.98
  6. Step 6: Final answer
    x = 545,197,460.43

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Double scale
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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.