Home / 208,199,831.44-287,316,515.40-115,381,918.48

Finding the Fourth Proportional to 208,199,831.44, 287,316,515.40 and 115,381,918.48

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Solution

The fourth proportional to 208,199,831.44, 287,316,515.40 and 115,381,918.48 is: 159,227,462.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,199,831.44 : 287,316,515.40 = 115,381,918.48 : x
  2. Step 2: Convert to fraction form
    208,199,831.44/287,316,515.40 = 115,381,918.48/x
  3. Step 3: Cross multiply
    208,199,831.44x = 287,316,515.40 × 115,381,918.48
  4. Step 4: Simplify right side
    208,199,831.44x = 33,151,130,757,840,464
  5. Step 5: Solve for x
    x = 33,151,130,757,840,464/208,199,831.44
  6. Step 6: Final answer
    x = 159,227,462.04

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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.