Home / 553,539,059.74-763,891,147.88-302,643,743.10

Finding the Fourth Proportional to 553,539,059.74, 763,891,147.88 and 302,643,743.10

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Solution

The fourth proportional to 553,539,059.74, 763,891,147.88 and 302,643,743.10 is: 417,652,326.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,539,059.74 : 763,891,147.88 = 302,643,743.10 : x
  2. Step 2: Convert to fraction form
    553,539,059.74/763,891,147.88 = 302,643,743.10/x
  3. Step 3: Cross multiply
    553,539,059.74x = 763,891,147.88 × 302,643,743.10
  4. Step 4: Simplify right side
    553,539,059.74x = 231,186,876,315,358,848
  5. Step 5: Solve for x
    x = 231,186,876,315,358,848/553,539,059.74
  6. Step 6: Final answer
    x = 417,652,326.87

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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.