Home / 108,344,075.29-149,512,938.40-65,942,307.78

Finding the Fourth Proportional to 108,344,075.29, 149,512,938.40 and 65,942,307.78

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Solution

The fourth proportional to 108,344,075.29, 149,512,938.40 and 65,942,307.78 is: 90,999,237.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,344,075.29 : 149,512,938.40 = 65,942,307.78 : x
  2. Step 2: Convert to fraction form
    108,344,075.29/149,512,938.40 = 65,942,307.78/x
  3. Step 3: Cross multiply
    108,344,075.29x = 149,512,938.40 × 65,942,307.78
  4. Step 4: Simplify right side
    108,344,075.29x = 9,859,228,201,056,490
  5. Step 5: Solve for x
    x = 9,859,228,201,056,490/108,344,075.29
  6. Step 6: Final answer
    x = 90,999,237.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.