Home / 144,496,340.64-199,406,409.93-78,417,409.50

Finding the Fourth Proportional to 144,496,340.64, 199,406,409.93 and 78,417,409.50

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Solution

The fourth proportional to 144,496,340.64, 199,406,409.93 and 78,417,409.50 is: 108,216,817.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,496,340.64 : 199,406,409.93 = 78,417,409.50 : x
  2. Step 2: Convert to fraction form
    144,496,340.64/199,406,409.93 = 78,417,409.50/x
  3. Step 3: Cross multiply
    144,496,340.64x = 199,406,409.93 × 78,417,409.50
  4. Step 4: Simplify right side
    144,496,340.64x = 15,636,934,104,405,676
  5. Step 5: Solve for x
    x = 15,636,934,104,405,676/144,496,340.64
  6. Step 6: Final answer
    x = 108,216,817.36

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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.