Home / 279,754,488.08-386,054,430.48-154,303,989.83

Finding the Fourth Proportional to 279,754,488.08, 386,054,430.48 and 154,303,989.83

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Solution

The fourth proportional to 279,754,488.08, 386,054,430.48 and 154,303,989.83 is: 212,935,775.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,754,488.08 : 386,054,430.48 = 154,303,989.83 : x
  2. Step 2: Convert to fraction form
    279,754,488.08/386,054,430.48 = 154,303,989.83/x
  3. Step 3: Cross multiply
    279,754,488.08x = 386,054,430.48 × 154,303,989.83
  4. Step 4: Simplify right side
    279,754,488.08x = 59,569,738,914,129,800
  5. Step 5: Solve for x
    x = 59,569,738,914,129,800/279,754,488.08
  6. Step 6: Final answer
    x = 212,935,775.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.