Home / 281,037,695.78-387,832,113.99-153,886,416.10

Finding the Fourth Proportional to 281,037,695.78, 387,832,113.99 and 153,886,416.10

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Solution

The fourth proportional to 281,037,695.78, 387,832,113.99 and 153,886,416.10 is: 212,363,305.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,037,695.78 : 387,832,113.99 = 153,886,416.10 : x
  2. Step 2: Convert to fraction form
    281,037,695.78/387,832,113.99 = 153,886,416.10/x
  3. Step 3: Cross multiply
    281,037,695.78x = 387,832,113.99 × 153,886,416.10
  4. Step 4: Simplify right side
    281,037,695.78x = 59,682,094,069,438,192
  5. Step 5: Solve for x
    x = 59,682,094,069,438,192/281,037,695.78
  6. Step 6: Final answer
    x = 212,363,305.58

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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.