Home / 279,038,705.28-385,070,357.44-153,588,219.12

Finding the Fourth Proportional to 279,038,705.28, 385,070,357.44 and 153,588,219.12

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Solution

The fourth proportional to 279,038,705.28, 385,070,357.44 and 153,588,219.12 is: 211,950,060.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,038,705.28 : 385,070,357.44 = 153,588,219.12 : x
  2. Step 2: Convert to fraction form
    279,038,705.28/385,070,357.44 = 153,588,219.12/x
  3. Step 3: Cross multiply
    279,038,705.28x = 385,070,357.44 × 153,588,219.12
  4. Step 4: Simplify right side
    279,038,705.28x = 59,142,270,435,111,440
  5. Step 5: Solve for x
    x = 59,142,270,435,111,440/279,038,705.28
  6. Step 6: Final answer
    x = 211,950,060.39

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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.