Home / 145,164,974.40-217,747,461.60-99,180,820.80

Finding the Fourth Proportional to 145,164,974.40, 217,747,461.60 and 99,180,820.80

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Solution

The fourth proportional to 145,164,974.40, 217,747,461.60 and 99,180,820.80 is: 148,771,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,164,974.40 : 217,747,461.60 = 99,180,820.80 : x
  2. Step 2: Convert to fraction form
    145,164,974.40/217,747,461.60 = 99,180,820.80/x
  3. Step 3: Cross multiply
    145,164,974.40x = 217,747,461.60 × 99,180,820.80
  4. Step 4: Simplify right side
    145,164,974.40x = 21,596,371,968,604,480
  5. Step 5: Solve for x
    x = 21,596,371,968,604,480/145,164,974.40
  6. Step 6: Final answer
    x = 148,771,231.20

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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.