Home / 103,118,109.96-142,300,153.02-56,708,363.73

Finding the Fourth Proportional to 103,118,109.96, 142,300,153.02 and 56,708,363.73

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Solution

The fourth proportional to 103,118,109.96, 142,300,153.02 and 56,708,363.73 is: 78,255,980.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,118,109.96 : 142,300,153.02 = 56,708,363.73 : x
  2. Step 2: Convert to fraction form
    103,118,109.96/142,300,153.02 = 56,708,363.73/x
  3. Step 3: Cross multiply
    103,118,109.96x = 142,300,153.02 × 56,708,363.73
  4. Step 4: Simplify right side
    103,118,109.96x = 8,069,608,836,292,818
  5. Step 5: Solve for x
    x = 8,069,608,836,292,818/103,118,109.96
  6. Step 6: Final answer
    x = 78,255,980.83

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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.