Home / 130,808,411.70-196,212,617.55-128,121,026.10

Finding the Fourth Proportional to 130,808,411.70, 196,212,617.55 and 128,121,026.10

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Solution

The fourth proportional to 130,808,411.70, 196,212,617.55 and 128,121,026.10 is: 192,181,539.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,808,411.70 : 196,212,617.55 = 128,121,026.10 : x
  2. Step 2: Convert to fraction form
    130,808,411.70/196,212,617.55 = 128,121,026.10/x
  3. Step 3: Cross multiply
    130,808,411.70x = 196,212,617.55 × 128,121,026.10
  4. Step 4: Simplify right side
    130,808,411.70x = 25,138,961,894,272,868
  5. Step 5: Solve for x
    x = 25,138,961,894,272,868/130,808,411.70
  6. Step 6: Final answer
    x = 192,181,539.15

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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.