Home / 209,952,811.10-314,929,216.65-118,119,806.30

Finding the Fourth Proportional to 209,952,811.10, 314,929,216.65 and 118,119,806.30

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Solution

The fourth proportional to 209,952,811.10, 314,929,216.65 and 118,119,806.30 is: 177,179,709.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,811.10 : 314,929,216.65 = 118,119,806.30 : x
  2. Step 2: Convert to fraction form
    209,952,811.10/314,929,216.65 = 118,119,806.30/x
  3. Step 3: Cross multiply
    209,952,811.10x = 314,929,216.65 × 118,119,806.30
  4. Step 4: Simplify right side
    209,952,811.10x = 37,199,378,068,908,728
  5. Step 5: Solve for x
    x = 37,199,378,068,908,728/209,952,811.10
  6. Step 6: Final answer
    x = 177,179,709.45

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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.