Home / 1,398,210,015-2,097,591,312.28-512,903,596.52

Finding the Fourth Proportional to 1,398,210,015, 2,097,591,312.28 and 512,903,596.52

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Solution

The fourth proportional to 1,398,210,015, 2,097,591,312.28 and 512,903,596.52 is: 769,456,745.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,210,015 : 2,097,591,312.28 = 512,903,596.52 : x
  2. Step 2: Convert to fraction form
    1,398,210,015/2,097,591,312.28 = 512,903,596.52/x
  3. Step 3: Cross multiply
    1,398,210,015x = 2,097,591,312.28 × 512,903,596.52
  4. Step 4: Simplify right side
    1,398,210,015x = 1,075,862,128,097,518,336
  5. Step 5: Solve for x
    x = 1,075,862,128,097,518,336/1,398,210,015
  6. Step 6: Final answer
    x = 769,456,745.81

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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.