Home / 890,534,488.14-1,228,799,002.86-509,051,077.20

Finding the Fourth Proportional to 890,534,488.14, 1,228,799,002.86 and 509,051,077.20

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Solution

The fourth proportional to 890,534,488.14, 1,228,799,002.86 and 509,051,077.20 is: 702,411,264.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,534,488.14 : 1,228,799,002.86 = 509,051,077.20 : x
  2. Step 2: Convert to fraction form
    890,534,488.14/1,228,799,002.86 = 509,051,077.20/x
  3. Step 3: Cross multiply
    890,534,488.14x = 1,228,799,002.86 × 509,051,077.20
  4. Step 4: Simplify right side
    890,534,488.14x = 625,521,456,068,168,832
  5. Step 5: Solve for x
    x = 625,521,456,068,168,832/890,534,488.14
  6. Step 6: Final answer
    x = 702,411,264.69

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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.