Home / 103,118,109.46-142,300,152.32-56,708,363.22

Finding the Fourth Proportional to 103,118,109.46, 142,300,152.32 and 56,708,363.22

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Solution

The fourth proportional to 103,118,109.46, 142,300,152.32 and 56,708,363.22 is: 78,255,980.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,118,109.46 : 142,300,152.32 = 56,708,363.22 : x
  2. Step 2: Convert to fraction form
    103,118,109.46/142,300,152.32 = 56,708,363.22/x
  3. Step 3: Cross multiply
    103,118,109.46x = 142,300,152.32 × 56,708,363.22
  4. Step 4: Simplify right side
    103,118,109.46x = 8,069,608,724,023,885
  5. Step 5: Solve for x
    x = 8,069,608,724,023,885/103,118,109.46
  6. Step 6: Final answer
    x = 78,255,980.12

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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.