Home / 1,120,160,791.17-1,545,781,377.71-618,358,804.72

Finding the Fourth Proportional to 1,120,160,791.17, 1,545,781,377.71 and 618,358,804.72

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Solution

The fourth proportional to 1,120,160,791.17, 1,545,781,377.71 and 618,358,804.72 is: 853,312,785.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,160,791.17 : 1,545,781,377.71 = 618,358,804.72 : x
  2. Step 2: Convert to fraction form
    1,120,160,791.17/1,545,781,377.71 = 618,358,804.72/x
  3. Step 3: Cross multiply
    1,120,160,791.17x = 1,545,781,377.71 × 618,358,804.72
  4. Step 4: Simplify right side
    1,120,160,791.17x = 955,847,525,076,871,936
  5. Step 5: Solve for x
    x = 955,847,525,076,871,936/1,120,160,791.17
  6. Step 6: Final answer
    x = 853,312,785.64

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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.