Home / 130,433,667.40-195,650,501.10-128,418,128.20

Finding the Fourth Proportional to 130,433,667.40, 195,650,501.10 and 128,418,128.20

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Solution

The fourth proportional to 130,433,667.40, 195,650,501.10 and 128,418,128.20 is: 192,627,192.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,433,667.40 : 195,650,501.10 = 128,418,128.20 : x
  2. Step 2: Convert to fraction form
    130,433,667.40/195,650,501.10 = 128,418,128.20/x
  3. Step 3: Cross multiply
    130,433,667.40x = 195,650,501.10 × 128,418,128.20
  4. Step 4: Simplify right side
    130,433,667.40x = 25,125,071,132,654,040
  5. Step 5: Solve for x
    x = 25,125,071,132,654,040/130,433,667.40
  6. Step 6: Final answer
    x = 192,627,192.30

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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.