Home / 56,853,622.86-78,457,999.59-30,748,140.55

Finding the Fourth Proportional to 56,853,622.86, 78,457,999.59 and 30,748,140.55

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Solution

The fourth proportional to 56,853,622.86, 78,457,999.59 and 30,748,140.55 is: 42,432,433.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,853,622.86 : 78,457,999.59 = 30,748,140.55 : x
  2. Step 2: Convert to fraction form
    56,853,622.86/78,457,999.59 = 30,748,140.55/x
  3. Step 3: Cross multiply
    56,853,622.86x = 78,457,999.59 × 30,748,140.55
  4. Step 4: Simplify right side
    56,853,622.86x = 2,412,437,598,665,162.50
  5. Step 5: Solve for x
    x = 2,412,437,598,665,162.50/56,853,622.86
  6. Step 6: Final answer
    x = 42,432,433.98

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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.