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Finding the Fourth Proportional to 771,078,724.74, 1,064,964,753.54 and 519,749,647.02

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Solution

The fourth proportional to 771,078,724.74, 1,064,964,753.54 and 519,749,647.02 is: 717,845,061.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,078,724.74 : 1,064,964,753.54 = 519,749,647.02 : x
  2. Step 2: Convert to fraction form
    771,078,724.74/1,064,964,753.54 = 519,749,647.02/x
  3. Step 3: Cross multiply
    771,078,724.74x = 1,064,964,753.54 × 519,749,647.02
  4. Step 4: Simplify right side
    771,078,724.74x = 553,515,054,741,156,224
  5. Step 5: Solve for x
    x = 553,515,054,741,156,224/771,078,724.74
  6. Step 6: Final answer
    x = 717,845,061.71

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Double scale
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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.