Home / 126,872,497.40-190,308,746.10-86,561,713.40

Finding the Fourth Proportional to 126,872,497.40, 190,308,746.10 and 86,561,713.40

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Solution

The fourth proportional to 126,872,497.40, 190,308,746.10 and 86,561,713.40 is: 129,842,570.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,872,497.40 : 190,308,746.10 = 86,561,713.40 : x
  2. Step 2: Convert to fraction form
    126,872,497.40/190,308,746.10 = 86,561,713.40/x
  3. Step 3: Cross multiply
    126,872,497.40x = 190,308,746.10 × 86,561,713.40
  4. Step 4: Simplify right side
    126,872,497.40x = 16,473,451,137,421,568
  5. Step 5: Solve for x
    x = 16,473,451,137,421,568/126,872,497.40
  6. Step 6: Final answer
    x = 129,842,570.10

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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.