Home / 9,990,509.40-13,786,944.53-5,406,830.37

Finding the Fourth Proportional to 9,990,509.40, 13,786,944.53 and 5,406,830.37

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Solution

The fourth proportional to 9,990,509.40, 13,786,944.53 and 5,406,830.37 is: 7,461,448.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990,509.40 : 13,786,944.53 = 5,406,830.37 : x
  2. Step 2: Convert to fraction form
    9,990,509.40/13,786,944.53 = 5,406,830.37/x
  3. Step 3: Cross multiply
    9,990,509.40x = 13,786,944.53 × 5,406,830.37
  4. Step 4: Simplify right side
    9,990,509.40x = 74,543,670,367,275.23
  5. Step 5: Solve for x
    x = 74,543,670,367,275.23/9,990,509.40
  6. Step 6: Final answer
    x = 7,461,448.40

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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.