Home / 56,931,129.50-85,405,541.61-19,117,512.86

Finding the Fourth Proportional to 56,931,129.50, 85,405,541.61 and 19,117,512.86

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Solution

The fourth proportional to 56,931,129.50, 85,405,541.61 and 19,117,512.86 is: 28,679,240.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,931,129.50 : 85,405,541.61 = 19,117,512.86 : x
  2. Step 2: Convert to fraction form
    56,931,129.50/85,405,541.61 = 19,117,512.86/x
  3. Step 3: Cross multiply
    56,931,129.50x = 85,405,541.61 × 19,117,512.86
  4. Step 4: Simplify right side
    56,931,129.50x = 1,632,741,540,044,440
  5. Step 5: Solve for x
    x = 1,632,741,540,044,440/56,931,129.50
  6. Step 6: Final answer
    x = 28,679,240.24

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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.