Home / 56,853,621.86-78,457,998.21-30,748,139.55

Finding the Fourth Proportional to 56,853,621.86, 78,457,998.21 and 30,748,139.55

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Solution

The fourth proportional to 56,853,621.86, 78,457,998.21 and 30,748,139.55 is: 42,432,432.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,853,621.86 : 78,457,998.21 = 30,748,139.55 : x
  2. Step 2: Convert to fraction form
    56,853,621.86/78,457,998.21 = 30,748,139.55/x
  3. Step 3: Cross multiply
    56,853,621.86x = 78,457,998.21 × 30,748,139.55
  4. Step 4: Simplify right side
    56,853,621.86x = 2,412,437,477,774,730
  5. Step 5: Solve for x
    x = 2,412,437,477,774,730/56,853,621.86
  6. Step 6: Final answer
    x = 42,432,432.61

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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.