Home / 763,442,030.40-1,145,498,968.80-354,287,572.80

Finding the Fourth Proportional to 763,442,030.40, 1,145,498,968.80 and 354,287,572.80

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Solution

The fourth proportional to 763,442,030.40, 1,145,498,968.80 and 354,287,572.80 is: 531,587,249.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,442,030.40 : 1,145,498,968.80 = 354,287,572.80 : x
  2. Step 2: Convert to fraction form
    763,442,030.40/1,145,498,968.80 = 354,287,572.80/x
  3. Step 3: Cross multiply
    763,442,030.40x = 1,145,498,968.80 × 354,287,572.80
  4. Step 4: Simplify right side
    763,442,030.40x = 405,836,049,301,054,912
  5. Step 5: Solve for x
    x = 405,836,049,301,054,912/763,442,030.40
  6. Step 6: Final answer
    x = 531,587,249.77

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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.