Home / 429,164,207,966.10-643,746,311,949.15-131,043,663,383.70

Finding the Fourth Proportional to 429,164,207,966.10, 643,746,311,949.15 and 131,043,663,383.70

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Solution

The fourth proportional to 429,164,207,966.10, 643,746,311,949.15 and 131,043,663,383.70 is: 196,565,495,075.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,164,207,966.10 : 643,746,311,949.15 = 131,043,663,383.70 : x
  2. Step 2: Convert to fraction form
    429,164,207,966.10/643,746,311,949.15 = 131,043,663,383.70/x
  3. Step 3: Cross multiply
    429,164,207,966.10x = 643,746,311,949.15 × 131,043,663,383.70
  4. Step 4: Simplify right side
    429,164,207,966.10x = 84,358,875,007,562,752,720,896
  5. Step 5: Solve for x
    x = 84,358,875,007,562,752,720,896/429,164,207,966.10
  6. Step 6: Final answer
    x = 196,565,495,075.55

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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.