Home / 130,724,672.40-196,087,008.60-90,413,888.40

Finding the Fourth Proportional to 130,724,672.40, 196,087,008.60 and 90,413,888.40

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Solution

The fourth proportional to 130,724,672.40, 196,087,008.60 and 90,413,888.40 is: 135,620,832.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,724,672.40 : 196,087,008.60 = 90,413,888.40 : x
  2. Step 2: Convert to fraction form
    130,724,672.40/196,087,008.60 = 90,413,888.40/x
  3. Step 3: Cross multiply
    130,724,672.40x = 196,087,008.60 × 90,413,888.40
  4. Step 4: Simplify right side
    130,724,672.40x = 17,728,988,912,250,240
  5. Step 5: Solve for x
    x = 17,728,988,912,250,240/130,724,672.40
  6. Step 6: Final answer
    x = 135,620,832.60

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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.