Home / 618,230,399.04-853,139,913.12-353,903,630.40

Finding the Fourth Proportional to 618,230,399.04, 853,139,913.12 and 353,903,630.40

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Solution

The fourth proportional to 618,230,399.04, 853,139,913.12 and 353,903,630.40 is: 488,376,684.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,230,399.04 : 853,139,913.12 = 353,903,630.40 : x
  2. Step 2: Convert to fraction form
    618,230,399.04/853,139,913.12 = 353,903,630.40/x
  3. Step 3: Cross multiply
    618,230,399.04x = 853,139,913.12 × 353,903,630.40
  4. Step 4: Simplify right side
    618,230,399.04x = 301,929,312,492,308,544
  5. Step 5: Solve for x
    x = 301,929,312,492,308,544/618,230,399.04
  6. Step 6: Final answer
    x = 488,376,684.42

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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.