Home / 618,700,430.50-853,829,045.22-354,433,498.18

Finding the Fourth Proportional to 618,700,430.50, 853,829,045.22 and 354,433,498.18

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Solution

The fourth proportional to 618,700,430.50, 853,829,045.22 and 354,433,498.18 is: 489,131,089.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,700,430.50 : 853,829,045.22 = 354,433,498.18 : x
  2. Step 2: Convert to fraction form
    618,700,430.50/853,829,045.22 = 354,433,498.18/x
  3. Step 3: Cross multiply
    618,700,430.50x = 853,829,045.22 × 354,433,498.18
  4. Step 4: Simplify right side
    618,700,430.50x = 302,625,615,349,020,608
  5. Step 5: Solve for x
    x = 302,625,615,349,020,608/618,700,430.50
  6. Step 6: Final answer
    x = 489,131,089.02

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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.