Home / 90,825,875.40-136,238,813.10-74,683,355.03

Finding the Fourth Proportional to 90,825,875.40, 136,238,813.10 and 74,683,355.03

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Solution

The fourth proportional to 90,825,875.40, 136,238,813.10 and 74,683,355.03 is: 112,025,032.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,825,875.40 : 136,238,813.10 = 74,683,355.03 : x
  2. Step 2: Convert to fraction form
    90,825,875.40/136,238,813.10 = 74,683,355.03/x
  3. Step 3: Cross multiply
    90,825,875.40x = 136,238,813.10 × 74,683,355.03
  4. Step 4: Simplify right side
    90,825,875.40x = 10,174,771,646,931,922
  5. Step 5: Solve for x
    x = 10,174,771,646,931,922/90,825,875.40
  6. Step 6: Final answer
    x = 112,025,032.54

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1.5x scale

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.