Home / 345,278,637.90-476,478,944.91-188,642,373.66

Finding the Fourth Proportional to 345,278,637.90, 476,478,944.91 and 188,642,373.66

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Solution

The fourth proportional to 345,278,637.90, 476,478,944.91 and 188,642,373.66 is: 260,323,429.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,278,637.90 : 476,478,944.91 = 188,642,373.66 : x
  2. Step 2: Convert to fraction form
    345,278,637.90/476,478,944.91 = 188,642,373.66/x
  3. Step 3: Cross multiply
    345,278,637.90x = 476,478,944.91 × 188,642,373.66
  4. Step 4: Simplify right side
    345,278,637.90x = 89,884,119,166,834,784
  5. Step 5: Solve for x
    x = 89,884,119,166,834,784/345,278,637.90
  6. Step 6: Final answer
    x = 260,323,429.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.