Home / 628,591,237,708.90-867,617,306,720.55-409,406,119,406.66

Finding the Fourth Proportional to 628,591,237,708.90, 867,617,306,720.55 and 409,406,119,406.66

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Solution

The fourth proportional to 628,591,237,708.90, 867,617,306,720.55 and 409,406,119,406.66 is: 565,085,564,935.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,591,237,708.90 : 867,617,306,720.55 = 409,406,119,406.66 : x
  2. Step 2: Convert to fraction form
    628,591,237,708.90/867,617,306,720.55 = 409,406,119,406.66/x
  3. Step 3: Cross multiply
    628,591,237,708.90x = 867,617,306,720.55 × 409,406,119,406.66
  4. Step 4: Simplify right side
    628,591,237,708.90x = 355,207,834,674,518,231,613,440
  5. Step 5: Solve for x
    x = 355,207,834,674,518,231,613,440/628,591,237,708.90
  6. Step 6: Final answer
    x = 565,085,564,935.94

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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.