Home / 315,308,548.19-472,961,101.85-128,561,758.50

Finding the Fourth Proportional to 315,308,548.19, 472,961,101.85 and 128,561,758.50

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Solution

The fourth proportional to 315,308,548.19, 472,961,101.85 and 128,561,758.50 is: 192,841,936.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,308,548.19 : 472,961,101.85 = 128,561,758.50 : x
  2. Step 2: Convert to fraction form
    315,308,548.19/472,961,101.85 = 128,561,758.50/x
  3. Step 3: Cross multiply
    315,308,548.19x = 472,961,101.85 × 128,561,758.50
  4. Step 4: Simplify right side
    315,308,548.19x = 60,804,710,956,473,200
  5. Step 5: Solve for x
    x = 60,804,710,956,473,200/315,308,548.19
  6. Step 6: Final answer
    x = 192,841,936.27

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.