Home / 268,627,694.40-402,842,008.80-86,880,801.60

Finding the Fourth Proportional to 268,627,694.40, 402,842,008.80 and 86,880,801.60

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Solution

The fourth proportional to 268,627,694.40, 402,842,008.80 and 86,880,801.60 is: 130,289,011.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,627,694.40 : 402,842,008.80 = 86,880,801.60 : x
  2. Step 2: Convert to fraction form
    268,627,694.40/402,842,008.80 = 86,880,801.60/x
  3. Step 3: Cross multiply
    268,627,694.40x = 402,842,008.80 × 86,880,801.60
  4. Step 4: Simplify right side
    268,627,694.40x = 34,999,236,642,698,252
  5. Step 5: Solve for x
    x = 34,999,236,642,698,252/268,627,694.40
  6. Step 6: Final answer
    x = 130,289,011.05

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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.