Home / 1,329,705,097.65-1,994,557,646.48-778,707,068.85

Finding the Fourth Proportional to 1,329,705,097.65, 1,994,557,646.48 and 778,707,068.85

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Solution

The fourth proportional to 1,329,705,097.65, 1,994,557,646.48 and 778,707,068.85 is: 1,168,060,603.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,705,097.65 : 1,994,557,646.48 = 778,707,068.85 : x
  2. Step 2: Convert to fraction form
    1,329,705,097.65/1,994,557,646.48 = 778,707,068.85/x
  3. Step 3: Cross multiply
    1,329,705,097.65x = 1,994,557,646.48 × 778,707,068.85
  4. Step 4: Simplify right side
    1,329,705,097.65x = 1,553,176,138,538,901,760
  5. Step 5: Solve for x
    x = 1,553,176,138,538,901,760/1,329,705,097.65
  6. Step 6: Final answer
    x = 1,168,060,603.28

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Double scale
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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.