Home / 426,909,462,180.24-640,341,640,037.42-140,029,729,821.72

Finding the Fourth Proportional to 426,909,462,180.24, 640,341,640,037.42 and 140,029,729,821.72

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Solution

The fourth proportional to 426,909,462,180.24, 640,341,640,037.42 and 140,029,729,821.72 is: 210,037,197,091.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,909,462,180.24 : 640,341,640,037.42 = 140,029,729,821.72 : x
  2. Step 2: Convert to fraction form
    426,909,462,180.24/640,341,640,037.42 = 140,029,729,821.72/x
  3. Step 3: Cross multiply
    426,909,462,180.24x = 640,341,640,037.42 × 140,029,729,821.72
  4. Step 4: Simplify right side
    426,909,462,180.24x = 89,666,866,848,037,009,883,136
  5. Step 5: Solve for x
    x = 89,666,866,848,037,009,883,136/426,909,462,180.24
  6. Step 6: Final answer
    x = 210,037,197,091.17

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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.