Home / 56,769,207.16-78,341,537.20-30,663,724.72

Finding the Fourth Proportional to 56,769,207.16, 78,341,537.20 and 30,663,724.72

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Solution

The fourth proportional to 56,769,207.16, 78,341,537.20 and 30,663,724.72 is: 42,315,957.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,769,207.16 : 78,341,537.20 = 30,663,724.72 : x
  2. Step 2: Convert to fraction form
    56,769,207.16/78,341,537.20 = 30,663,724.72/x
  3. Step 3: Cross multiply
    56,769,207.16x = 78,341,537.20 × 30,663,724.72
  4. Step 4: Simplify right side
    56,769,207.16x = 2,402,243,330,842,439.50
  5. Step 5: Solve for x
    x = 2,402,243,330,842,439.50/56,769,207.16
  6. Step 6: Final answer
    x = 42,315,957.03

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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.