Home / 826,489,483.72-1,140,555,508.32-455,211,515.08

Finding the Fourth Proportional to 826,489,483.72, 1,140,555,508.32 and 455,211,515.08

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Solution

The fourth proportional to 826,489,483.72, 1,140,555,508.32 and 455,211,515.08 is: 628,191,902.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,489,483.72 : 1,140,555,508.32 = 455,211,515.08 : x
  2. Step 2: Convert to fraction form
    826,489,483.72/1,140,555,508.32 = 455,211,515.08/x
  3. Step 3: Cross multiply
    826,489,483.72x = 1,140,555,508.32 × 455,211,515.08
  4. Step 4: Simplify right side
    826,489,483.72x = 519,194,000,975,186,688
  5. Step 5: Solve for x
    x = 519,194,000,975,186,688/826,489,483.72
  6. Step 6: Final answer
    x = 628,191,902.26

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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.