Home / 289,574,303.40-399,620,809.44-176,550,318.36

Finding the Fourth Proportional to 289,574,303.40, 399,620,809.44 and 176,550,318.36

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Solution

The fourth proportional to 289,574,303.40, 399,620,809.44 and 176,550,318.36 is: 243,644,481.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,574,303.40 : 399,620,809.44 = 176,550,318.36 : x
  2. Step 2: Convert to fraction form
    289,574,303.40/399,620,809.44 = 176,550,318.36/x
  3. Step 3: Cross multiply
    289,574,303.40x = 399,620,809.44 × 176,550,318.36
  4. Step 4: Simplify right side
    289,574,303.40x = 70,553,181,129,912,896
  5. Step 5: Solve for x
    x = 70,553,181,129,912,896/289,574,303.40
  6. Step 6: Final answer
    x = 243,644,481.92

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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.