Home / 6,420,011.60-9,630,017.40-2,158,763.60

Finding the Fourth Proportional to 6,420,011.60, 9,630,017.40 and 2,158,763.60

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Solution

The fourth proportional to 6,420,011.60, 9,630,017.40 and 2,158,763.60 is: 3,238,145.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,420,011.60 : 9,630,017.40 = 2,158,763.60 : x
  2. Step 2: Convert to fraction form
    6,420,011.60/9,630,017.40 = 2,158,763.60/x
  3. Step 3: Cross multiply
    6,420,011.60x = 9,630,017.40 × 2,158,763.60
  4. Step 4: Simplify right side
    6,420,011.60x = 20,788,931,030,486.64
  5. Step 5: Solve for x
    x = 20,788,931,030,486.64/6,420,011.60
  6. Step 6: Final answer
    x = 3,238,145.40

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Double scale
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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.