Home / 1,989,303,289.17-2,983,309,236.59-660,974,601.57

Finding the Fourth Proportional to 1,989,303,289.17, 2,983,309,236.59 and 660,974,601.57

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Solution

The fourth proportional to 1,989,303,289.17, 2,983,309,236.59 and 660,974,601.57 is: 991,247,360.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,303,289.17 : 2,983,309,236.59 = 660,974,601.57 : x
  2. Step 2: Convert to fraction form
    1,989,303,289.17/2,983,309,236.59 = 660,974,601.57/x
  3. Step 3: Cross multiply
    1,989,303,289.17x = 2,983,309,236.59 × 660,974,601.57
  4. Step 4: Simplify right side
    1,989,303,289.17x = 1,971,891,634,011,871,488
  5. Step 5: Solve for x
    x = 1,971,891,634,011,871,488/1,989,303,289.17
  6. Step 6: Final answer
    x = 991,247,360.19

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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.