Home / 729,860,440,948.92-1,007,209,578,071.50-404,722,638,328.16

Finding the Fourth Proportional to 729,860,440,948.92, 1,007,209,578,071.50 and 404,722,638,328.16

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Solution

The fourth proportional to 729,860,440,948.92, 1,007,209,578,071.50 and 404,722,638,328.16 is: 558,518,443,959.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    729,860,440,948.92 : 1,007,209,578,071.50 = 404,722,638,328.16 : x
  2. Step 2: Convert to fraction form
    729,860,440,948.92/1,007,209,578,071.50 = 404,722,638,328.16/x
  3. Step 3: Cross multiply
    729,860,440,948.92x = 1,007,209,578,071.50 × 404,722,638,328.16
  4. Step 4: Simplify right side
    729,860,440,948.92x = 407,640,517,786,490,330,152,960
  5. Step 5: Solve for x
    x = 407,640,517,786,490,330,152,960/729,860,440,948.92
  6. Step 6: Final answer
    x = 558,518,443,959.64

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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.