Home / 91,009,953.60-136,514,930.40-66,823,483.20

Finding the Fourth Proportional to 91,009,953.60, 136,514,930.40 and 66,823,483.20

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Solution

The fourth proportional to 91,009,953.60, 136,514,930.40 and 66,823,483.20 is: 100,235,224.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,009,953.60 : 136,514,930.40 = 66,823,483.20 : x
  2. Step 2: Convert to fraction form
    91,009,953.60/136,514,930.40 = 66,823,483.20/x
  3. Step 3: Cross multiply
    91,009,953.60x = 136,514,930.40 × 66,823,483.20
  4. Step 4: Simplify right side
    91,009,953.60x = 9,122,403,158,133,570
  5. Step 5: Solve for x
    x = 9,122,403,158,133,570/91,009,953.60
  6. Step 6: Final answer
    x = 100,235,224.80

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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.