Home / 288,434,688.56-432,652,033.20-70,083,908.72

Finding the Fourth Proportional to 288,434,688.56, 432,652,033.20 and 70,083,908.72

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Solution

The fourth proportional to 288,434,688.56, 432,652,033.20 and 70,083,908.72 is: 105,125,863.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,434,688.56 : 432,652,033.20 = 70,083,908.72 : x
  2. Step 2: Convert to fraction form
    288,434,688.56/432,652,033.20 = 70,083,908.72/x
  3. Step 3: Cross multiply
    288,434,688.56x = 432,652,033.20 × 70,083,908.72
  4. Step 4: Simplify right side
    288,434,688.56x = 30,321,945,602,311,208
  5. Step 5: Solve for x
    x = 30,321,945,602,311,208/288,434,688.56
  6. Step 6: Final answer
    x = 105,125,863.17

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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.