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Finding the Fourth Proportional to 668,619,594.34, 922,690,225.29 and 371,260,377.70

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Solution

The fourth proportional to 668,619,594.34, 922,690,225.29 and 371,260,377.70 is: 512,336,647.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,619,594.34 : 922,690,225.29 = 371,260,377.70 : x
  2. Step 2: Convert to fraction form
    668,619,594.34/922,690,225.29 = 371,260,377.70/x
  3. Step 3: Cross multiply
    668,619,594.34x = 922,690,225.29 × 371,260,377.70
  4. Step 4: Simplify right side
    668,619,594.34x = 342,558,321,541,263,488
  5. Step 5: Solve for x
    x = 342,558,321,541,263,488/668,619,594.34
  6. Step 6: Final answer
    x = 512,336,647.69

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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.