Home / 420,293,091.60-630,439,637.40-259,049,955.60

Finding the Fourth Proportional to 420,293,091.60, 630,439,637.40 and 259,049,955.60

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Solution

The fourth proportional to 420,293,091.60, 630,439,637.40 and 259,049,955.60 is: 388,574,933.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,293,091.60 : 630,439,637.40 = 259,049,955.60 : x
  2. Step 2: Convert to fraction form
    420,293,091.60/630,439,637.40 = 259,049,955.60/x
  3. Step 3: Cross multiply
    420,293,091.60x = 630,439,637.40 × 259,049,955.60
  4. Step 4: Simplify right side
    420,293,091.60x = 163,315,360,076,950,080
  5. Step 5: Solve for x
    x = 163,315,360,076,950,080/420,293,091.60
  6. Step 6: Final answer
    x = 388,574,933.40

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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.