Home / 209,389,934.40-288,952,477.60-116,570,440.32

Finding the Fourth Proportional to 209,389,934.40, 288,952,477.60 and 116,570,440.32

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Solution

The fourth proportional to 209,389,934.40, 288,952,477.60 and 116,570,440.32 is: 160,864,072.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,389,934.40 : 288,952,477.60 = 116,570,440.32 : x
  2. Step 2: Convert to fraction form
    209,389,934.40/288,952,477.60 = 116,570,440.32/x
  3. Step 3: Cross multiply
    209,389,934.40x = 288,952,477.60 × 116,570,440.32
  4. Step 4: Simplify right side
    209,389,934.40x = 33,683,317,545,386,936
  5. Step 5: Solve for x
    x = 33,683,317,545,386,936/209,389,934.40
  6. Step 6: Final answer
    x = 160,864,072.30

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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.