Home / 451,119,721,741.70-676,957,913,862.86-209,051,711,918.86

Finding the Fourth Proportional to 451,119,721,741.70, 676,957,913,862.86 and 209,051,711,918.86

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Solution

The fourth proportional to 451,119,721,741.70, 676,957,913,862.86 and 209,051,711,918.86 is: 313,706,548,327.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,119,721,741.70 : 676,957,913,862.86 = 209,051,711,918.86 : x
  2. Step 2: Convert to fraction form
    451,119,721,741.70/676,957,913,862.86 = 209,051,711,918.86/x
  3. Step 3: Cross multiply
    451,119,721,741.70x = 676,957,913,862.86 × 209,051,711,918.86
  4. Step 4: Simplify right side
    451,119,721,741.70x = 141,519,210,790,051,035,217,920
  5. Step 5: Solve for x
    x = 141,519,210,790,051,035,217,920/451,119,721,741.70
  6. Step 6: Final answer
    x = 313,706,548,327.50

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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.