Home / 56,853,605.16-78,457,975.18-30,748,122.86

Finding the Fourth Proportional to 56,853,605.16, 78,457,975.18 and 30,748,122.86

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Solution

The fourth proportional to 56,853,605.16, 78,457,975.18 and 30,748,122.86 is: 42,432,409.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,853,605.16 : 78,457,975.18 = 30,748,122.86 : x
  2. Step 2: Convert to fraction form
    56,853,605.16/78,457,975.18 = 30,748,122.86/x
  3. Step 3: Cross multiply
    56,853,605.16x = 78,457,975.18 × 30,748,122.86
  4. Step 4: Simplify right side
    56,853,605.16x = 2,412,435,459,712,310.50
  5. Step 5: Solve for x
    x = 2,412,435,459,712,310.50/56,853,605.16
  6. Step 6: Final answer
    x = 42,432,409.57

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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.