Home / 820,871,031.06-1,231,314,518.16-656,700,945.48

Finding the Fourth Proportional to 820,871,031.06, 1,231,314,518.16 and 656,700,945.48

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Solution

The fourth proportional to 820,871,031.06, 1,231,314,518.16 and 656,700,945.48 is: 985,057,795.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,871,031.06 : 1,231,314,518.16 = 656,700,945.48 : x
  2. Step 2: Convert to fraction form
    820,871,031.06/1,231,314,518.16 = 656,700,945.48/x
  3. Step 3: Cross multiply
    820,871,031.06x = 1,231,314,518.16 × 656,700,945.48
  4. Step 4: Simplify right side
    820,871,031.06x = 808,605,408,258,922,752
  5. Step 5: Solve for x
    x = 808,605,408,258,922,752/820,871,031.06
  6. Step 6: Final answer
    x = 985,057,795.52

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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.