Home / 146,974,020.20-219,938,483.10-128,013,021.80

Finding the Fourth Proportional to 146,974,020.20, 219,938,483.10 and 128,013,021.80

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Solution

The fourth proportional to 146,974,020.20, 219,938,483.10 and 128,013,021.80 is: 191,564,398.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,974,020.20 : 219,938,483.10 = 128,013,021.80 : x
  2. Step 2: Convert to fraction form
    146,974,020.20/219,938,483.10 = 128,013,021.80/x
  3. Step 3: Cross multiply
    146,974,020.20x = 219,938,483.10 × 128,013,021.80
  4. Step 4: Simplify right side
    146,974,020.20x = 28,154,989,831,739,232
  5. Step 5: Solve for x
    x = 28,154,989,831,739,232/146,974,020.20
  6. Step 6: Final answer
    x = 191,564,398.89

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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.