Home / 774,547,678.80-1,162,163,799.72-405,994,508.28

Finding the Fourth Proportional to 774,547,678.80, 1,162,163,799.72 and 405,994,508.28

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Solution

The fourth proportional to 774,547,678.80, 1,162,163,799.72 and 405,994,508.28 is: 609,171,176.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,547,678.80 : 1,162,163,799.72 = 405,994,508.28 : x
  2. Step 2: Convert to fraction form
    774,547,678.80/1,162,163,799.72 = 405,994,508.28/x
  3. Step 3: Cross multiply
    774,547,678.80x = 1,162,163,799.72 × 405,994,508.28
  4. Step 4: Simplify right side
    774,547,678.80x = 471,832,120,408,137,792
  5. Step 5: Solve for x
    x = 471,832,120,408,137,792/774,547,678.80
  6. Step 6: Final answer
    x = 609,171,176.06

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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.