Home / 525,260,372.40-724,896,844.20-290,305,976.40

Finding the Fourth Proportional to 525,260,372.40, 724,896,844.20 and 290,305,976.40

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Solution

The fourth proportional to 525,260,372.40, 724,896,844.20 and 290,305,976.40 is: 400,642,990.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,260,372.40 : 724,896,844.20 = 290,305,976.40 : x
  2. Step 2: Convert to fraction form
    525,260,372.40/724,896,844.20 = 290,305,976.40/x
  3. Step 3: Cross multiply
    525,260,372.40x = 724,896,844.20 × 290,305,976.40
  4. Step 4: Simplify right side
    525,260,372.40x = 210,441,886,144,759,680
  5. Step 5: Solve for x
    x = 210,441,886,144,759,680/525,260,372.40
  6. Step 6: Final answer
    x = 400,642,990.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.