Home / 131,004,077.10-196,506,115.65-128,453,160.30

Finding the Fourth Proportional to 131,004,077.10, 196,506,115.65 and 128,453,160.30

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Solution

The fourth proportional to 131,004,077.10, 196,506,115.65 and 128,453,160.30 is: 192,679,740.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,004,077.10 : 196,506,115.65 = 128,453,160.30 : x
  2. Step 2: Convert to fraction form
    131,004,077.10/196,506,115.65 = 128,453,160.30/x
  3. Step 3: Cross multiply
    131,004,077.10x = 196,506,115.65 × 128,453,160.30
  4. Step 4: Simplify right side
    131,004,077.10x = 25,241,831,573,519,788
  5. Step 5: Solve for x
    x = 25,241,831,573,519,788/131,004,077.10
  6. Step 6: Final answer
    x = 192,679,740.45

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1.5x scale

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.