Home / 474,344,643.40-710,455,281.90-389,409,987.40

Finding the Fourth Proportional to 474,344,643.40, 710,455,281.90 and 389,409,987.40

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Solution

The fourth proportional to 474,344,643.40, 710,455,281.90 and 389,409,987.40 is: 583,243,399.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,344,643.40 : 710,455,281.90 = 389,409,987.40 : x
  2. Step 2: Convert to fraction form
    474,344,643.40/710,455,281.90 = 389,409,987.40/x
  3. Step 3: Cross multiply
    474,344,643.40x = 710,455,281.90 × 389,409,987.40
  4. Step 4: Simplify right side
    474,344,643.40x = 276,658,382,372,942,432
  5. Step 5: Solve for x
    x = 276,658,382,372,942,432/474,344,643.40
  6. Step 6: Final answer
    x = 583,243,399.55

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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.