Home / 909,936,476.39-1,255,709,600.60-492,248,646.11

Finding the Fourth Proportional to 909,936,476.39, 1,255,709,600.60 and 492,248,646.11

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Solution

The fourth proportional to 909,936,476.39, 1,255,709,600.60 and 492,248,646.11 is: 679,301,651.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,936,476.39 : 1,255,709,600.60 = 492,248,646.11 : x
  2. Step 2: Convert to fraction form
    909,936,476.39/1,255,709,600.60 = 492,248,646.11/x
  3. Step 3: Cross multiply
    909,936,476.39x = 1,255,709,600.60 × 492,248,646.11
  4. Step 4: Simplify right side
    909,936,476.39x = 618,121,350,803,356,928
  5. Step 5: Solve for x
    x = 618,121,350,803,356,928/909,936,476.39
  6. Step 6: Final answer
    x = 679,301,651.09

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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.