Home / 28,918,895.85-39,908,483.46-15,865,917.57

Finding the Fourth Proportional to 28,918,895.85, 39,908,483.46 and 15,865,917.57

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Solution

The fourth proportional to 28,918,895.85, 39,908,483.46 and 15,865,917.57 is: 21,895,189.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,918,895.85 : 39,908,483.46 = 15,865,917.57 : x
  2. Step 2: Convert to fraction form
    28,918,895.85/39,908,483.46 = 15,865,917.57/x
  3. Step 3: Cross multiply
    28,918,895.85x = 39,908,483.46 × 15,865,917.57
  4. Step 4: Simplify right side
    28,918,895.85x = 633,184,708,920,068.38
  5. Step 5: Solve for x
    x = 633,184,708,920,068.38/28,918,895.85
  6. Step 6: Final answer
    x = 21,895,189.64

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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.