Home / 210,005,998.65-315,008,997.98-137,446,587.45

Finding the Fourth Proportional to 210,005,998.65, 315,008,997.98 and 137,446,587.45

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Solution

The fourth proportional to 210,005,998.65, 315,008,997.98 and 137,446,587.45 is: 206,169,881.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,005,998.65 : 315,008,997.98 = 137,446,587.45 : x
  2. Step 2: Convert to fraction form
    210,005,998.65/315,008,997.98 = 137,446,587.45/x
  3. Step 3: Cross multiply
    210,005,998.65x = 315,008,997.98 × 137,446,587.45
  4. Step 4: Simplify right side
    210,005,998.65x = 43,296,911,787,707,712
  5. Step 5: Solve for x
    x = 43,296,911,787,707,712/210,005,998.65
  6. Step 6: Final answer
    x = 206,169,881.18

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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.