Home / 9,420,075.60-12,999,943.08-5,290,436.40

Finding the Fourth Proportional to 9,420,075.60, 12,999,943.08 and 5,290,436.40

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Solution

The fourth proportional to 9,420,075.60, 12,999,943.08 and 5,290,436.40 is: 7,300,936.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,420,075.60 : 12,999,943.08 = 5,290,436.40 : x
  2. Step 2: Convert to fraction form
    9,420,075.60/12,999,943.08 = 5,290,436.40/x
  3. Step 3: Cross multiply
    9,420,075.60x = 12,999,943.08 × 5,290,436.40
  4. Step 4: Simplify right side
    9,420,075.60x = 68,775,372,068,360.12
  5. Step 5: Solve for x
    x = 68,775,372,068,360.12/9,420,075.60
  6. Step 6: Final answer
    x = 7,300,936.32

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1.5x scale

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.