Home / 126,312,020.40-189,468,030.60-30,573,908.40

Finding the Fourth Proportional to 126,312,020.40, 189,468,030.60 and 30,573,908.40

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Solution

The fourth proportional to 126,312,020.40, 189,468,030.60 and 30,573,908.40 is: 45,860,862.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,312,020.40 : 189,468,030.60 = 30,573,908.40 : x
  2. Step 2: Convert to fraction form
    126,312,020.40/189,468,030.60 = 30,573,908.40/x
  3. Step 3: Cross multiply
    126,312,020.40x = 189,468,030.60 × 30,573,908.40
  4. Step 4: Simplify right side
    126,312,020.40x = 5,792,778,212,292,797
  5. Step 5: Solve for x
    x = 5,792,778,212,292,797/126,312,020.40
  6. Step 6: Final answer
    x = 45,860,862.60

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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.