Home / 142,280,878.17-196,271,871.90-86,543,346.09

Finding the Fourth Proportional to 142,280,878.17, 196,271,871.90 and 86,543,346.09

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Solution

The fourth proportional to 142,280,878.17, 196,271,871.90 and 86,543,346.09 is: 119,383,748.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,280,878.17 : 196,271,871.90 = 86,543,346.09 : x
  2. Step 2: Convert to fraction form
    142,280,878.17/196,271,871.90 = 86,543,346.09/x
  3. Step 3: Cross multiply
    142,280,878.17x = 196,271,871.90 × 86,543,346.09
  4. Step 4: Simplify right side
    142,280,878.17x = 16,986,024,537,573,848
  5. Step 5: Solve for x
    x = 16,986,024,537,573,848/142,280,878.17
  6. Step 6: Final answer
    x = 119,383,748.23

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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.