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Finding the Fourth Proportional to 675,490,302.45, 931,696,067.57 and 619,915,187.93

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Solution

The fourth proportional to 675,490,302.45, 931,696,067.57 and 619,915,187.93 is: 855,041,946.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    675,490,302.45 : 931,696,067.57 = 619,915,187.93 : x
  2. Step 2: Convert to fraction form
    675,490,302.45/931,696,067.57 = 619,915,187.93/x
  3. Step 3: Cross multiply
    675,490,302.45x = 931,696,067.57 × 619,915,187.93
  4. Step 4: Simplify right side
    675,490,302.45x = 577,572,542,813,540,480
  5. Step 5: Solve for x
    x = 577,572,542,813,540,480/675,490,302.45
  6. Step 6: Final answer
    x = 855,041,946.15

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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.