Home / 518,049,206.40-776,974,276.80-154,555,420.80

Finding the Fourth Proportional to 518,049,206.40, 776,974,276.80 and 154,555,420.80

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Solution

The fourth proportional to 518,049,206.40, 776,974,276.80 and 154,555,420.80 is: 231,803,436.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,049,206.40 : 776,974,276.80 = 154,555,420.80 : x
  2. Step 2: Convert to fraction form
    518,049,206.40/776,974,276.80 = 154,555,420.80/x
  3. Step 3: Cross multiply
    518,049,206.40x = 776,974,276.80 × 154,555,420.80
  4. Step 4: Simplify right side
    518,049,206.40x = 120,085,586,301,599,680
  5. Step 5: Solve for x
    x = 120,085,586,301,599,680/518,049,206.40
  6. Step 6: Final answer
    x = 231,803,436.47

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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.