Home / 8,526,075.40-12,789,113.10-7,381,448.20

Finding the Fourth Proportional to 8,526,075.40, 12,789,113.10 and 7,381,448.20

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Solution

The fourth proportional to 8,526,075.40, 12,789,113.10 and 7,381,448.20 is: 11,072,172.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,526,075.40 : 12,789,113.10 = 7,381,448.20 : x
  2. Step 2: Convert to fraction form
    8,526,075.40/12,789,113.10 = 7,381,448.20/x
  3. Step 3: Cross multiply
    8,526,075.40x = 12,789,113.10 × 7,381,448.20
  4. Step 4: Simplify right side
    8,526,075.40x = 94,402,175,871,591.42
  5. Step 5: Solve for x
    x = 94,402,175,871,591.42/8,526,075.40
  6. Step 6: Final answer
    x = 11,072,172.30

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Double scale
Find fourth proportional to 8,526,076.40, 12,789,114.60 and 7,381,449.20
Similar ratio
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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.