Home / 210,757,915.77-290,849,352.02-115,386,821.75

Finding the Fourth Proportional to 210,757,915.77, 290,849,352.02 and 115,386,821.75

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Solution

The fourth proportional to 210,757,915.77, 290,849,352.02 and 115,386,821.75 is: 159,235,690.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,757,915.77 : 290,849,352.02 = 115,386,821.75 : x
  2. Step 2: Convert to fraction form
    210,757,915.77/290,849,352.02 = 115,386,821.75/x
  3. Step 3: Cross multiply
    210,757,915.77x = 290,849,352.02 × 115,386,821.75
  4. Step 4: Simplify right side
    210,757,915.77x = 33,560,182,335,603,560
  5. Step 5: Solve for x
    x = 33,560,182,335,603,560/210,757,915.77
  6. Step 6: Final answer
    x = 159,235,690.93

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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.