Home / 212,107,075.40-318,160,982.15-66,551,807.07

Finding the Fourth Proportional to 212,107,075.40, 318,160,982.15 and 66,551,807.07

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Solution

The fourth proportional to 212,107,075.40, 318,160,982.15 and 66,551,807.07 is: 99,827,826.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,107,075.40 : 318,160,982.15 = 66,551,807.07 : x
  2. Step 2: Convert to fraction form
    212,107,075.40/318,160,982.15 = 66,551,807.07/x
  3. Step 3: Cross multiply
    212,107,075.40x = 318,160,982.15 × 66,551,807.07
  4. Step 4: Simplify right side
    212,107,075.40x = 21,174,188,301,248,512
  5. Step 5: Solve for x
    x = 21,174,188,301,248,512/212,107,075.40
  6. Step 6: Final answer
    x = 99,827,826.40

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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.