Home / 209,980,931.60-314,971,397.40-133,054,518.80

Finding the Fourth Proportional to 209,980,931.60, 314,971,397.40 and 133,054,518.80

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Solution

The fourth proportional to 209,980,931.60, 314,971,397.40 and 133,054,518.80 is: 199,581,778.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,980,931.60 : 314,971,397.40 = 133,054,518.80 : x
  2. Step 2: Convert to fraction form
    209,980,931.60/314,971,397.40 = 133,054,518.80/x
  3. Step 3: Cross multiply
    209,980,931.60x = 314,971,397.40 × 133,054,518.80
  4. Step 4: Simplify right side
    209,980,931.60x = 41,908,367,716,820,568
  5. Step 5: Solve for x
    x = 41,908,367,716,820,568/209,980,931.60
  6. Step 6: Final answer
    x = 199,581,778.20

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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.