Home / 149,135,712.88-205,813,669.01-83,056,210.91

Finding the Fourth Proportional to 149,135,712.88, 205,813,669.01 and 83,056,210.91

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Solution

The fourth proportional to 149,135,712.88, 205,813,669.01 and 83,056,210.91 is: 114,621,127.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,135,712.88 : 205,813,669.01 = 83,056,210.91 : x
  2. Step 2: Convert to fraction form
    149,135,712.88/205,813,669.01 = 83,056,210.91/x
  3. Step 3: Cross multiply
    149,135,712.88x = 205,813,669.01 × 83,056,210.91
  4. Step 4: Simplify right side
    149,135,712.88x = 17,094,103,501,455,490
  5. Step 5: Solve for x
    x = 17,094,103,501,455,490/149,135,712.88
  6. Step 6: Final answer
    x = 114,621,127.10

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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.