Home / 804,356,802.20-1,207,132,400.10-320,030,197.40

Finding the Fourth Proportional to 804,356,802.20, 1,207,132,400.10 and 320,030,197.40

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Solution

The fourth proportional to 804,356,802.20, 1,207,132,400.10 and 320,030,197.40 is: 480,282,903.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,356,802.20 : 1,207,132,400.10 = 320,030,197.40 : x
  2. Step 2: Convert to fraction form
    804,356,802.20/1,207,132,400.10 = 320,030,197.40/x
  3. Step 3: Cross multiply
    804,356,802.20x = 1,207,132,400.10 × 320,030,197.40
  4. Step 4: Simplify right side
    804,356,802.20x = 386,318,820,291,938,752
  5. Step 5: Solve for x
    x = 386,318,820,291,938,752/804,356,802.20
  6. Step 6: Final answer
    x = 480,282,903.35

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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.