Home / 280,499,459.98-387,081,829.44-156,741,154.06

Finding the Fourth Proportional to 280,499,459.98, 387,081,829.44 and 156,741,154.06

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Solution

The fourth proportional to 280,499,459.98, 387,081,829.44 and 156,741,154.06 is: 216,298,643.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,499,459.98 : 387,081,829.44 = 156,741,154.06 : x
  2. Step 2: Convert to fraction form
    280,499,459.98/387,081,829.44 = 156,741,154.06/x
  3. Step 3: Cross multiply
    280,499,459.98x = 387,081,829.44 × 156,741,154.06
  4. Step 4: Simplify right side
    280,499,459.98x = 60,671,652,662,081,688
  5. Step 5: Solve for x
    x = 60,671,652,662,081,688/280,499,459.98
  6. Step 6: Final answer
    x = 216,298,643.38

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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.