Home / 345,384,985.65-518,020,730.69-124,010,498.49

Finding the Fourth Proportional to 345,384,985.65, 518,020,730.69 and 124,010,498.49

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Solution

The fourth proportional to 345,384,985.65, 518,020,730.69 and 124,010,498.49 is: 185,995,372.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,384,985.65 : 518,020,730.69 = 124,010,498.49 : x
  2. Step 2: Convert to fraction form
    345,384,985.65/518,020,730.69 = 124,010,498.49/x
  3. Step 3: Cross multiply
    345,384,985.65x = 518,020,730.69 × 124,010,498.49
  4. Step 4: Simplify right side
    345,384,985.65x = 64,240,009,040,400,888
  5. Step 5: Solve for x
    x = 64,240,009,040,400,888/345,384,985.65
  6. Step 6: Final answer
    x = 185,995,372.44

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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.