Home / 426,909,462,281.72-640,341,640,189.60-140,029,729,923.15

Finding the Fourth Proportional to 426,909,462,281.72, 640,341,640,189.60 and 140,029,729,923.15

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Solution

The fourth proportional to 426,909,462,281.72, 640,341,640,189.60 and 140,029,729,923.15 is: 210,037,197,243.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,909,462,281.72 : 640,341,640,189.60 = 140,029,729,923.15 : x
  2. Step 2: Convert to fraction form
    426,909,462,281.72/640,341,640,189.60 = 140,029,729,923.15/x
  3. Step 3: Cross multiply
    426,909,462,281.72x = 640,341,640,189.60 × 140,029,729,923.15
  4. Step 4: Simplify right side
    426,909,462,281.72x = 89,666,866,934,296,579,407,872
  5. Step 5: Solve for x
    x = 89,666,866,934,296,579,407,872/426,909,462,281.72
  6. Step 6: Final answer
    x = 210,037,197,243.30

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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.