Home / 208,673,218.40-312,885,411.60-127,952,117.60

Finding the Fourth Proportional to 208,673,218.40, 312,885,411.60 and 127,952,117.60

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Solution

The fourth proportional to 208,673,218.40, 312,885,411.60 and 127,952,117.60 is: 191,851,888.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,673,218.40 : 312,885,411.60 = 127,952,117.60 : x
  2. Step 2: Convert to fraction form
    208,673,218.40/312,885,411.60 = 127,952,117.60/x
  3. Step 3: Cross multiply
    208,673,218.40x = 312,885,411.60 × 127,952,117.60
  4. Step 4: Simplify right side
    208,673,218.40x = 40,034,350,980,367,608
  5. Step 5: Solve for x
    x = 40,034,350,980,367,608/208,673,218.40
  6. Step 6: Final answer
    x = 191,851,888.26

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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.