Home / 646,429,042.40-969,779,744.44-209,695,625.42

Finding the Fourth Proportional to 646,429,042.40, 969,779,744.44 and 209,695,625.42

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Solution

The fourth proportional to 646,429,042.40, 969,779,744.44 and 209,695,625.42 is: 314,587,613.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,429,042.40 : 969,779,744.44 = 209,695,625.42 : x
  2. Step 2: Convert to fraction form
    646,429,042.40/969,779,744.44 = 209,695,625.42/x
  3. Step 3: Cross multiply
    646,429,042.40x = 969,779,744.44 × 209,695,625.42
  4. Step 4: Simplify right side
    646,429,042.40x = 203,358,570,024,620,416
  5. Step 5: Solve for x
    x = 203,358,570,024,620,416/646,429,042.40
  6. Step 6: Final answer
    x = 314,587,613.93

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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.