Home / 19,251,941.80-28,885,688.70-8,471,295.40

Finding the Fourth Proportional to 19,251,941.80, 28,885,688.70 and 8,471,295.40

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Solution

The fourth proportional to 19,251,941.80, 28,885,688.70 and 8,471,295.40 is: 12,710,364.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,251,941.80 : 28,885,688.70 = 8,471,295.40 : x
  2. Step 2: Convert to fraction form
    19,251,941.80/28,885,688.70 = 8,471,295.40/x
  3. Step 3: Cross multiply
    19,251,941.80x = 28,885,688.70 × 8,471,295.40
  4. Step 4: Simplify right side
    19,251,941.80x = 244,699,201,810,142
  5. Step 5: Solve for x
    x = 244,699,201,810,142/19,251,941.80
  6. Step 6: Final answer
    x = 12,710,364.72

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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.