Home / 91,109,762.40-136,664,643.60-84,094,741.20

Finding the Fourth Proportional to 91,109,762.40, 136,664,643.60 and 84,094,741.20

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Solution

The fourth proportional to 91,109,762.40, 136,664,643.60 and 84,094,741.20 is: 126,142,111.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,109,762.40 : 136,664,643.60 = 84,094,741.20 : x
  2. Step 2: Convert to fraction form
    91,109,762.40/136,664,643.60 = 84,094,741.20/x
  3. Step 3: Cross multiply
    91,109,762.40x = 136,664,643.60 × 84,094,741.20
  4. Step 4: Simplify right side
    91,109,762.40x = 11,492,777,834,732,236
  5. Step 5: Solve for x
    x = 11,492,777,834,732,236/91,109,762.40
  6. Step 6: Final answer
    x = 126,142,111.80

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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.