Home / 103,538,113,433.48-155,169,876,238.86-53,171,512,531.40

Finding the Fourth Proportional to 103,538,113,433.48, 155,169,876,238.86 and 53,171,512,531.40

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Solution

The fourth proportional to 103,538,113,433.48, 155,169,876,238.86 and 53,171,512,531.40 is: 79,686,762,152.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,538,113,433.48 : 155,169,876,238.86 = 53,171,512,531.40 : x
  2. Step 2: Convert to fraction form
    103,538,113,433.48/155,169,876,238.86 = 53,171,512,531.40/x
  3. Step 3: Cross multiply
    103,538,113,433.48x = 155,169,876,238.86 × 53,171,512,531.40
  4. Step 4: Simplify right side
    103,538,113,433.48x = 8,250,617,018,929,554,391,040
  5. Step 5: Solve for x
    x = 8,250,617,018,929,554,391,040/103,538,113,433.48
  6. Step 6: Final answer
    x = 79,686,762,152.86

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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.