Home / 459,488,765.76-689,239,146.36-152,780,878.56

Finding the Fourth Proportional to 459,488,765.76, 689,239,146.36 and 152,780,878.56

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Solution

The fourth proportional to 459,488,765.76, 689,239,146.36 and 152,780,878.56 is: 229,173,312.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,488,765.76 : 689,239,146.36 = 152,780,878.56 : x
  2. Step 2: Convert to fraction form
    459,488,765.76/689,239,146.36 = 152,780,878.56/x
  3. Step 3: Cross multiply
    459,488,765.76x = 689,239,146.36 × 152,780,878.56
  4. Step 4: Simplify right side
    459,488,765.76x = 105,302,562,318,825,232
  5. Step 5: Solve for x
    x = 105,302,562,318,825,232/459,488,765.76
  6. Step 6: Final answer
    x = 229,173,312.09

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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.