Home / 891,616,820.60-1,336,291,490.10-430,562,228.60

Finding the Fourth Proportional to 891,616,820.60, 1,336,291,490.10 and 430,562,228.60

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Solution

The fourth proportional to 891,616,820.60, 1,336,291,490.10 and 430,562,228.60 is: 645,295,858.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,616,820.60 : 1,336,291,490.10 = 430,562,228.60 : x
  2. Step 2: Convert to fraction form
    891,616,820.60/1,336,291,490.10 = 430,562,228.60/x
  3. Step 3: Cross multiply
    891,616,820.60x = 1,336,291,490.10 × 430,562,228.60
  4. Step 4: Simplify right side
    891,616,820.60x = 575,356,642,036,670,848
  5. Step 5: Solve for x
    x = 575,356,642,036,670,848/891,616,820.60
  6. Step 6: Final answer
    x = 645,295,858.88

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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.