Home / 494,748,009.40-742,122,014.10-472,073,193.40

Finding the Fourth Proportional to 494,748,009.40, 742,122,014.10 and 472,073,193.40

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Solution

The fourth proportional to 494,748,009.40, 742,122,014.10 and 472,073,193.40 is: 708,109,790.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,748,009.40 : 742,122,014.10 = 472,073,193.40 : x
  2. Step 2: Convert to fraction form
    494,748,009.40/742,122,014.10 = 472,073,193.40/x
  3. Step 3: Cross multiply
    494,748,009.40x = 742,122,014.10 × 472,073,193.40
  4. Step 4: Simplify right side
    494,748,009.40x = 350,335,909,088,626,816
  5. Step 5: Solve for x
    x = 350,335,909,088,626,816/494,748,009.40
  6. Step 6: Final answer
    x = 708,109,790.10

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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.