Home / 91,789,808.31-137,598,152.22-45,688,090.50

Finding the Fourth Proportional to 91,789,808.31, 137,598,152.22 and 45,688,090.50

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Solution

The fourth proportional to 91,789,808.31, 137,598,152.22 and 45,688,090.50 is: 68,489,050.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,789,808.31 : 137,598,152.22 = 45,688,090.50 : x
  2. Step 2: Convert to fraction form
    91,789,808.31/137,598,152.22 = 45,688,090.50/x
  3. Step 3: Cross multiply
    91,789,808.31x = 137,598,152.22 × 45,688,090.50
  4. Step 4: Simplify right side
    91,789,808.31x = 6,286,596,831,260,136
  5. Step 5: Solve for x
    x = 6,286,596,831,260,136/91,789,808.31
  6. Step 6: Final answer
    x = 68,489,050.66

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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.