Home / 143,139,315.80-214,708,973.70-66,436,851.80

Finding the Fourth Proportional to 143,139,315.80, 214,708,973.70 and 66,436,851.80

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Solution

The fourth proportional to 143,139,315.80, 214,708,973.70 and 66,436,851.80 is: 99,655,277.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,139,315.80 : 214,708,973.70 = 66,436,851.80 : x
  2. Step 2: Convert to fraction form
    143,139,315.80/214,708,973.70 = 66,436,851.80/x
  3. Step 3: Cross multiply
    143,139,315.80x = 214,708,973.70 × 66,436,851.80
  4. Step 4: Simplify right side
    143,139,315.80x = 14,264,588,265,836,996
  5. Step 5: Solve for x
    x = 14,264,588,265,836,996/143,139,315.80
  6. Step 6: Final answer
    x = 99,655,277.70

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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.