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Finding the Fourth Proportional to 1,098,569,718.99, 1,515,502,411.52 and 800,573,025.87

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Solution

The fourth proportional to 1,098,569,718.99, 1,515,502,411.52 and 800,573,025.87 is: 1,104,409,060.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,569,718.99 : 1,515,502,411.52 = 800,573,025.87 : x
  2. Step 2: Convert to fraction form
    1,098,569,718.99/1,515,502,411.52 = 800,573,025.87/x
  3. Step 3: Cross multiply
    1,098,569,718.99x = 1,515,502,411.52 × 800,573,025.87
  4. Step 4: Simplify right side
    1,098,569,718.99x = 1,213,270,351,299,845,632
  5. Step 5: Solve for x
    x = 1,213,270,351,299,845,632/1,098,569,718.99
  6. Step 6: Final answer
    x = 1,104,409,060.55

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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.