Home / 660,549,404.40-990,824,106.60-272,172,321.60

Finding the Fourth Proportional to 660,549,404.40, 990,824,106.60 and 272,172,321.60

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Solution

The fourth proportional to 660,549,404.40, 990,824,106.60 and 272,172,321.60 is: 408,258,482.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,549,404.40 : 990,824,106.60 = 272,172,321.60 : x
  2. Step 2: Convert to fraction form
    660,549,404.40/990,824,106.60 = 272,172,321.60/x
  3. Step 3: Cross multiply
    660,549,404.40x = 990,824,106.60 × 272,172,321.60
  4. Step 4: Simplify right side
    660,549,404.40x = 269,674,897,390,567,904
  5. Step 5: Solve for x
    x = 269,674,897,390,567,904/660,549,404.40
  6. Step 6: Final answer
    x = 408,258,482.40

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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.