Home / 1,537,667,331.84-2,120,280,606.72-979,866,858.24

Finding the Fourth Proportional to 1,537,667,331.84, 2,120,280,606.72 and 979,866,858.24

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Solution

The fourth proportional to 1,537,667,331.84, 2,120,280,606.72 and 979,866,858.24 is: 1,351,132,753.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,537,667,331.84 : 2,120,280,606.72 = 979,866,858.24 : x
  2. Step 2: Convert to fraction form
    1,537,667,331.84/2,120,280,606.72 = 979,866,858.24/x
  3. Step 3: Cross multiply
    1,537,667,331.84x = 2,120,280,606.72 × 979,866,858.24
  4. Step 4: Simplify right side
    1,537,667,331.84x = 2,077,592,696,693,927,424
  5. Step 5: Solve for x
    x = 2,077,592,696,693,927,424/1,537,667,331.84
  6. Step 6: Final answer
    x = 1,351,132,753.93

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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.