Home / 490,668,707.10-735,285,615.30-417,489,281.40

Finding the Fourth Proportional to 490,668,707.10, 735,285,615.30 and 417,489,281.40

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Solution

The fourth proportional to 490,668,707.10, 735,285,615.30 and 417,489,281.40 is: 625,623,478.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,668,707.10 : 735,285,615.30 = 417,489,281.40 : x
  2. Step 2: Convert to fraction form
    490,668,707.10/735,285,615.30 = 417,489,281.40/x
  3. Step 3: Cross multiply
    490,668,707.10x = 735,285,615.30 × 417,489,281.40
  4. Step 4: Simplify right side
    490,668,707.10x = 306,973,863,155,353,792
  5. Step 5: Solve for x
    x = 306,973,863,155,353,792/490,668,707.10
  6. Step 6: Final answer
    x = 625,623,478.15

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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.