Home / 144,496,360.89-199,406,437.88-78,417,429.82

Finding the Fourth Proportional to 144,496,360.89, 199,406,437.88 and 78,417,429.82

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Solution

The fourth proportional to 144,496,360.89, 199,406,437.88 and 78,417,429.82 is: 108,216,845.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,496,360.89 : 199,406,437.88 = 78,417,429.82 : x
  2. Step 2: Convert to fraction form
    144,496,360.89/199,406,437.88 = 78,417,429.82/x
  3. Step 3: Cross multiply
    144,496,360.89x = 199,406,437.88 × 78,417,429.82
  4. Step 4: Simplify right side
    144,496,360.89x = 15,636,940,347,220,486
  5. Step 5: Solve for x
    x = 15,636,940,347,220,486/144,496,360.89
  6. Step 6: Final answer
    x = 108,216,845.40

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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.