Home / 209,661,683.47-289,354,646.66-126,057,047.47

Finding the Fourth Proportional to 209,661,683.47, 289,354,646.66 and 126,057,047.47

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Solution

The fourth proportional to 209,661,683.47, 289,354,646.66 and 126,057,047.47 is: 173,971,666.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,661,683.47 : 289,354,646.66 = 126,057,047.47 : x
  2. Step 2: Convert to fraction form
    209,661,683.47/289,354,646.66 = 126,057,047.47/x
  3. Step 3: Cross multiply
    209,661,683.47x = 289,354,646.66 × 126,057,047.47
  4. Step 4: Simplify right side
    209,661,683.47x = 36,475,192,428,331,024
  5. Step 5: Solve for x
    x = 36,475,192,428,331,024/209,661,683.47
  6. Step 6: Final answer
    x = 173,971,666.28

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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.