Home / 486,281,430.30-729,422,145.45-145,879,254.30

Finding the Fourth Proportional to 486,281,430.30, 729,422,145.45 and 145,879,254.30

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Solution

The fourth proportional to 486,281,430.30, 729,422,145.45 and 145,879,254.30 is: 218,818,881.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,281,430.30 : 729,422,145.45 = 145,879,254.30 : x
  2. Step 2: Convert to fraction form
    486,281,430.30/729,422,145.45 = 145,879,254.30/x
  3. Step 3: Cross multiply
    486,281,430.30x = 729,422,145.45 × 145,879,254.30
  4. Step 4: Simplify right side
    486,281,430.30x = 106,407,558,648,152,160
  5. Step 5: Solve for x
    x = 106,407,558,648,152,160/486,281,430.30
  6. Step 6: Final answer
    x = 218,818,881.45

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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.