Home / 1,212,801,690.02-1,673,671,375.80-655,884,737.10

Finding the Fourth Proportional to 1,212,801,690.02, 1,673,671,375.80 and 655,884,737.10

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Solution

The fourth proportional to 1,212,801,690.02, 1,673,671,375.80 and 655,884,737.10 is: 905,123,664.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,801,690.02 : 1,673,671,375.80 = 655,884,737.10 : x
  2. Step 2: Convert to fraction form
    1,212,801,690.02/1,673,671,375.80 = 655,884,737.10/x
  3. Step 3: Cross multiply
    1,212,801,690.02x = 1,673,671,375.80 × 655,884,737.10
  4. Step 4: Simplify right side
    1,212,801,690.02x = 1,097,735,510,308,378,368
  5. Step 5: Solve for x
    x = 1,097,735,510,308,378,368/1,212,801,690.02
  6. Step 6: Final answer
    x = 905,123,664.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.