Home / 402,417,247.40-603,625,871.10-143,640,909.80

Finding the Fourth Proportional to 402,417,247.40, 603,625,871.10 and 143,640,909.80

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Solution

The fourth proportional to 402,417,247.40, 603,625,871.10 and 143,640,909.80 is: 215,461,364.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,417,247.40 : 603,625,871.10 = 143,640,909.80 : x
  2. Step 2: Convert to fraction form
    402,417,247.40/603,625,871.10 = 143,640,909.80/x
  3. Step 3: Cross multiply
    402,417,247.40x = 603,625,871.10 × 143,640,909.80
  4. Step 4: Simplify right side
    402,417,247.40x = 86,705,369,303,621,536
  5. Step 5: Solve for x
    x = 86,705,369,303,621,536/402,417,247.40
  6. Step 6: Final answer
    x = 215,461,364.70

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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.