Home / 153,309,056.40-211,569,699.60-83,697,371.28

Finding the Fourth Proportional to 153,309,056.40, 211,569,699.60 and 83,697,371.28

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Solution

The fourth proportional to 153,309,056.40, 211,569,699.60 and 83,697,371.28 is: 115,504,120.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,309,056.40 : 211,569,699.60 = 83,697,371.28 : x
  2. Step 2: Convert to fraction form
    153,309,056.40/211,569,699.60 = 83,697,371.28/x
  3. Step 3: Cross multiply
    153,309,056.40x = 211,569,699.60 × 83,697,371.28
  4. Step 4: Simplify right side
    153,309,056.40x = 17,707,827,699,019,268
  5. Step 5: Solve for x
    x = 17,707,827,699,019,268/153,309,056.40
  6. Step 6: Final answer
    x = 115,504,120.34

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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.