Home / 210,123,616.86-290,047,971.15-126,495,636.66

Finding the Fourth Proportional to 210,123,616.86, 290,047,971.15 and 126,495,636.66

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Solution

The fourth proportional to 210,123,616.86, 290,047,971.15 and 126,495,636.66 is: 174,610,561.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,123,616.86 : 290,047,971.15 = 126,495,636.66 : x
  2. Step 2: Convert to fraction form
    210,123,616.86/290,047,971.15 = 126,495,636.66/x
  3. Step 3: Cross multiply
    210,123,616.86x = 290,047,971.15 × 126,495,636.66
  4. Step 4: Simplify right side
    210,123,616.86x = 36,689,802,772,560,560
  5. Step 5: Solve for x
    x = 36,689,802,772,560,560/210,123,616.86
  6. Step 6: Final answer
    x = 174,610,561.73

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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.