Home / 279,937,111.80-419,905,667.70-249,326,110.20

Finding the Fourth Proportional to 279,937,111.80, 419,905,667.70 and 249,326,110.20

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Solution

The fourth proportional to 279,937,111.80, 419,905,667.70 and 249,326,110.20 is: 373,989,165.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,937,111.80 : 419,905,667.70 = 249,326,110.20 : x
  2. Step 2: Convert to fraction form
    279,937,111.80/419,905,667.70 = 249,326,110.20/x
  3. Step 3: Cross multiply
    279,937,111.80x = 419,905,667.70 × 249,326,110.20
  4. Step 4: Simplify right side
    279,937,111.80x = 104,693,446,778,574,768
  5. Step 5: Solve for x
    x = 104,693,446,778,574,768/279,937,111.80
  6. Step 6: Final answer
    x = 373,989,165.30

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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.