Home / 821,432,278.16-1,133,967,428.19-550,319,575.20

Finding the Fourth Proportional to 821,432,278.16, 1,133,967,428.19 and 550,319,575.20

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Solution

The fourth proportional to 821,432,278.16, 1,133,967,428.19 and 550,319,575.20 is: 759,702,887.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,432,278.16 : 1,133,967,428.19 = 550,319,575.20 : x
  2. Step 2: Convert to fraction form
    821,432,278.16/1,133,967,428.19 = 550,319,575.20/x
  3. Step 3: Cross multiply
    821,432,278.16x = 1,133,967,428.19 × 550,319,575.20
  4. Step 4: Simplify right side
    821,432,278.16x = 624,044,473,371,160,704
  5. Step 5: Solve for x
    x = 624,044,473,371,160,704/821,432,278.16
  6. Step 6: Final answer
    x = 759,702,887.22

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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.