Home / 890,530,453.19-1,228,931,548.97-488,646,840.77

Finding the Fourth Proportional to 890,530,453.19, 1,228,931,548.97 and 488,646,840.77

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Solution

The fourth proportional to 890,530,453.19, 1,228,931,548.97 and 488,646,840.77 is: 674,332,378.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,530,453.19 : 1,228,931,548.97 = 488,646,840.77 : x
  2. Step 2: Convert to fraction form
    890,530,453.19/1,228,931,548.97 = 488,646,840.77/x
  3. Step 3: Cross multiply
    890,530,453.19x = 1,228,931,548.97 × 488,646,840.77
  4. Step 4: Simplify right side
    890,530,453.19x = 600,513,518,927,402,112
  5. Step 5: Solve for x
    x = 600,513,518,927,402,112/890,530,453.19
  6. Step 6: Final answer
    x = 674,332,378.84

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1.5x scale

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.