Home / 28,026,007.90-42,039,011.85-7,831,249.90

Finding the Fourth Proportional to 28,026,007.90, 42,039,011.85 and 7,831,249.90

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Solution

The fourth proportional to 28,026,007.90, 42,039,011.85 and 7,831,249.90 is: 11,746,874.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,026,007.90 : 42,039,011.85 = 7,831,249.90 : x
  2. Step 2: Convert to fraction form
    28,026,007.90/42,039,011.85 = 7,831,249.90/x
  3. Step 3: Cross multiply
    28,026,007.90x = 42,039,011.85 × 7,831,249.90
  4. Step 4: Simplify right side
    28,026,007.90x = 329,218,007,346,411.31
  5. Step 5: Solve for x
    x = 329,218,007,346,411.31/28,026,007.90
  6. Step 6: Final answer
    x = 11,746,874.85

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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.