Home / 215,006,448,776.86-322,552,158,655.32-78,869,837,159.01

Finding the Fourth Proportional to 215,006,448,776.86, 322,552,158,655.32 and 78,869,837,159.01

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Solution

The fourth proportional to 215,006,448,776.86, 322,552,158,655.32 and 78,869,837,159.01 is: 118,320,340,497.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,006,448,776.86 : 322,552,158,655.32 = 78,869,837,159.01 : x
  2. Step 2: Convert to fraction form
    215,006,448,776.86/322,552,158,655.32 = 78,869,837,159.01/x
  3. Step 3: Cross multiply
    215,006,448,776.86x = 322,552,158,655.32 × 78,869,837,159.01
  4. Step 4: Simplify right side
    215,006,448,776.86x = 25,439,636,228,432,243,720,192
  5. Step 5: Solve for x
    x = 25,439,636,228,432,243,720,192/215,006,448,776.86
  6. Step 6: Final answer
    x = 118,320,340,497.48

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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.