Home / 402,193,852.04-603,274,357.74-139,938,428.36

Finding the Fourth Proportional to 402,193,852.04, 603,274,357.74 and 139,938,428.36

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Solution

The fourth proportional to 402,193,852.04, 603,274,357.74 and 139,938,428.36 is: 209,901,929.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,193,852.04 : 603,274,357.74 = 139,938,428.36 : x
  2. Step 2: Convert to fraction form
    402,193,852.04/603,274,357.74 = 139,938,428.36/x
  3. Step 3: Cross multiply
    402,193,852.04x = 603,274,357.74 × 139,938,428.36
  4. Step 4: Simplify right side
    402,193,852.04x = 84,421,265,492,024,016
  5. Step 5: Solve for x
    x = 84,421,265,492,024,016/402,193,852.04
  6. Step 6: Final answer
    x = 209,901,929.29

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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.