Home / 6,698,413.40-10,047,620.10-6,642,426.20

Finding the Fourth Proportional to 6,698,413.40, 10,047,620.10 and 6,642,426.20

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Solution

The fourth proportional to 6,698,413.40, 10,047,620.10 and 6,642,426.20 is: 9,963,639.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,698,413.40 : 10,047,620.10 = 6,642,426.20 : x
  2. Step 2: Convert to fraction form
    6,698,413.40/10,047,620.10 = 6,642,426.20/x
  3. Step 3: Cross multiply
    6,698,413.40x = 10,047,620.10 × 6,642,426.20
  4. Step 4: Simplify right side
    6,698,413.40x = 66,740,574,999,886.62
  5. Step 5: Solve for x
    x = 66,740,574,999,886.62/6,698,413.40
  6. Step 6: Final answer
    x = 9,963,639.30

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Similar ratio
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1.5x scale

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.