Home / 10,434,421.80-15,651,632.70-6,403,343.40

Finding the Fourth Proportional to 10,434,421.80, 15,651,632.70 and 6,403,343.40

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Solution

The fourth proportional to 10,434,421.80, 15,651,632.70 and 6,403,343.40 is: 9,605,015.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,434,421.80 : 15,651,632.70 = 6,403,343.40 : x
  2. Step 2: Convert to fraction form
    10,434,421.80/15,651,632.70 = 6,403,343.40/x
  3. Step 3: Cross multiply
    10,434,421.80x = 15,651,632.70 × 6,403,343.40
  4. Step 4: Simplify right side
    10,434,421.80x = 100,222,778,948,769.19
  5. Step 5: Solve for x
    x = 100,222,778,948,769.19/10,434,421.80
  6. Step 6: Final answer
    x = 9,605,015.10

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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.