Home / 1,329,705,368.10-1,994,558,052.15-778,707,339.30

Finding the Fourth Proportional to 1,329,705,368.10, 1,994,558,052.15 and 778,707,339.30

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Solution

The fourth proportional to 1,329,705,368.10, 1,994,558,052.15 and 778,707,339.30 is: 1,168,061,008.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,705,368.10 : 1,994,558,052.15 = 778,707,339.30 : x
  2. Step 2: Convert to fraction form
    1,329,705,368.10/1,994,558,052.15 = 778,707,339.30/x
  3. Step 3: Cross multiply
    1,329,705,368.10x = 1,994,558,052.15 × 778,707,339.30
  4. Step 4: Simplify right side
    1,329,705,368.10x = 1,553,176,993,869,117,184
  5. Step 5: Solve for x
    x = 1,553,176,993,869,117,184/1,329,705,368.10
  6. Step 6: Final answer
    x = 1,168,061,008.95

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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.