Home / 81,878,143,247.56-112,984,824,990.90-47,117,089,747.72

Finding the Fourth Proportional to 81,878,143,247.56, 112,984,824,990.90 and 47,117,089,747.72

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Solution

The fourth proportional to 81,878,143,247.56, 112,984,824,990.90 and 47,117,089,747.72 is: 65,017,548,372.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,878,143,247.56 : 112,984,824,990.90 = 47,117,089,747.72 : x
  2. Step 2: Convert to fraction form
    81,878,143,247.56/112,984,824,990.90 = 47,117,089,747.72/x
  3. Step 3: Cross multiply
    81,878,143,247.56x = 112,984,824,990.90 × 47,117,089,747.72
  4. Step 4: Simplify right side
    81,878,143,247.56x = 5,323,516,139,226,672,398,336
  5. Step 5: Solve for x
    x = 5,323,516,139,226,672,398,336/81,878,143,247.56
  6. Step 6: Final answer
    x = 65,017,548,372.23

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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.