Home / 492,238,449.64-738,301,272.54-128,767,888.36

Finding the Fourth Proportional to 492,238,449.64, 738,301,272.54 and 128,767,888.36

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Solution

The fourth proportional to 492,238,449.64, 738,301,272.54 and 128,767,888.36 is: 193,137,077.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,238,449.64 : 738,301,272.54 = 128,767,888.36 : x
  2. Step 2: Convert to fraction form
    492,238,449.64/738,301,272.54 = 128,767,888.36/x
  3. Step 3: Cross multiply
    492,238,449.64x = 738,301,272.54 × 128,767,888.36
  4. Step 4: Simplify right side
    492,238,449.64x = 95,069,495,838,476,656
  5. Step 5: Solve for x
    x = 95,069,495,838,476,656/492,238,449.64
  6. Step 6: Final answer
    x = 193,137,077.99

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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.