Home / 429,164,207,964.60-643,746,311,946.90-131,043,663,382.20

Finding the Fourth Proportional to 429,164,207,964.60, 643,746,311,946.90 and 131,043,663,382.20

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Solution

The fourth proportional to 429,164,207,964.60, 643,746,311,946.90 and 131,043,663,382.20 is: 196,565,495,073.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,164,207,964.60 : 643,746,311,946.90 = 131,043,663,382.20 : x
  2. Step 2: Convert to fraction form
    429,164,207,964.60/643,746,311,946.90 = 131,043,663,382.20/x
  3. Step 3: Cross multiply
    429,164,207,964.60x = 643,746,311,946.90 × 131,043,663,382.20
  4. Step 4: Simplify right side
    429,164,207,964.60x = 84,358,875,006,302,280,482,816
  5. Step 5: Solve for x
    x = 84,358,875,006,302,280,482,816/429,164,207,964.60
  6. Step 6: Final answer
    x = 196,565,495,073.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.