Home / 19,144,428.90-28,716,643.35-12,774,329.70

Finding the Fourth Proportional to 19,144,428.90, 28,716,643.35 and 12,774,329.70

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Solution

The fourth proportional to 19,144,428.90, 28,716,643.35 and 12,774,329.70 is: 19,161,494.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,144,428.90 : 28,716,643.35 = 12,774,329.70 : x
  2. Step 2: Convert to fraction form
    19,144,428.90/28,716,643.35 = 12,774,329.70/x
  3. Step 3: Cross multiply
    19,144,428.90x = 28,716,643.35 × 12,774,329.70
  4. Step 4: Simplify right side
    19,144,428.90x = 366,835,870,030,212.50
  5. Step 5: Solve for x
    x = 366,835,870,030,212.50/19,144,428.90
  6. Step 6: Final answer
    x = 19,161,494.55

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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.