Home / 287,611,176-396,904,822.64-157,230,984

Finding the Fourth Proportional to 287,611,176, 396,904,822.64 and 157,230,984

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Solution

The fourth proportional to 287,611,176, 396,904,822.64 and 157,230,984 is: 216,979,523.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,611,176 : 396,904,822.64 = 157,230,984 : x
  2. Step 2: Convert to fraction form
    287,611,176/396,904,822.64 = 157,230,984/x
  3. Step 3: Cross multiply
    287,611,176x = 396,904,822.64 × 157,230,984
  4. Step 4: Simplify right side
    287,611,176x = 62,405,735,818,032,672
  5. Step 5: Solve for x
    x = 62,405,735,818,032,672/287,611,176
  6. Step 6: Final answer
    x = 216,979,523.14

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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.