Home / 70,349,064.72-105,533,613.54-21,831,111.24

Finding the Fourth Proportional to 70,349,064.72, 105,533,613.54 and 21,831,111.24

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Solution

The fourth proportional to 70,349,064.72, 105,533,613.54 and 21,831,111.24 is: 32,749,775.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,349,064.72 : 105,533,613.54 = 21,831,111.24 : x
  2. Step 2: Convert to fraction form
    70,349,064.72/105,533,613.54 = 21,831,111.24/x
  3. Step 3: Cross multiply
    70,349,064.72x = 105,533,613.54 × 21,831,111.24
  4. Step 4: Simplify right side
    70,349,064.72x = 2,303,916,056,750,910
  5. Step 5: Solve for x
    x = 2,303,916,056,750,910/70,349,064.72
  6. Step 6: Final answer
    x = 32,749,775.22

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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.