Home / 768,038,687.60-1,152,058,031.40-193,610,015.60

Finding the Fourth Proportional to 768,038,687.60, 1,152,058,031.40 and 193,610,015.60

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Solution

The fourth proportional to 768,038,687.60, 1,152,058,031.40 and 193,610,015.60 is: 290,415,023.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,038,687.60 : 1,152,058,031.40 = 193,610,015.60 : x
  2. Step 2: Convert to fraction form
    768,038,687.60/1,152,058,031.40 = 193,610,015.60/x
  3. Step 3: Cross multiply
    768,038,687.60x = 1,152,058,031.40 × 193,610,015.60
  4. Step 4: Simplify right side
    768,038,687.60x = 223,049,973,431,459,296
  5. Step 5: Solve for x
    x = 223,049,973,431,459,296/768,038,687.60
  6. Step 6: Final answer
    x = 290,415,023.40

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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.