Home / 401,552,717.40-602,201,529.72-128,859,711.48

Finding the Fourth Proportional to 401,552,717.40, 602,201,529.72 and 128,859,711.48

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Solution

The fourth proportional to 401,552,717.40, 602,201,529.72 and 128,859,711.48 is: 193,248,637.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    401,552,717.40 : 602,201,529.72 = 128,859,711.48 : x
  2. Step 2: Convert to fraction form
    401,552,717.40/602,201,529.72 = 128,859,711.48/x
  3. Step 3: Cross multiply
    401,552,717.40x = 602,201,529.72 × 128,859,711.48
  4. Step 4: Simplify right side
    401,552,717.40x = 77,599,515,372,533,856
  5. Step 5: Solve for x
    x = 77,599,515,372,533,856/401,552,717.40
  6. Step 6: Final answer
    x = 193,248,637.13

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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.