Home / 56,128,402-84,192,603.06-13,578,130

Finding the Fourth Proportional to 56,128,402, 84,192,603.06 and 13,578,130

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Solution

The fourth proportional to 56,128,402, 84,192,603.06 and 13,578,130 is: 20,367,195.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,128,402 : 84,192,603.06 = 13,578,130 : x
  2. Step 2: Convert to fraction form
    56,128,402/84,192,603.06 = 13,578,130/x
  3. Step 3: Cross multiply
    56,128,402x = 84,192,603.06 × 13,578,130
  4. Step 4: Simplify right side
    56,128,402x = 1,143,178,109,387,077.75
  5. Step 5: Solve for x
    x = 1,143,178,109,387,077.75/56,128,402
  6. Step 6: Final answer
    x = 20,367,195.01

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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.