Home / 890,313,048.35-1,228,628,070.87-508,828,718.90

Finding the Fourth Proportional to 890,313,048.35, 1,228,628,070.87 and 508,828,718.90

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Solution

The fourth proportional to 890,313,048.35, 1,228,628,070.87 and 508,828,718.90 is: 702,181,382.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,313,048.35 : 1,228,628,070.87 = 508,828,718.90 : x
  2. Step 2: Convert to fraction form
    890,313,048.35/1,228,628,070.87 = 508,828,718.90/x
  3. Step 3: Cross multiply
    890,313,048.35x = 1,228,628,070.87 × 508,828,718.90
  4. Step 4: Simplify right side
    890,313,048.35x = 625,161,247,299,217,280
  5. Step 5: Solve for x
    x = 625,161,247,299,217,280/890,313,048.35
  6. Step 6: Final answer
    x = 702,181,382.67

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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.