Home / 152,398,584.65-210,315,816.73-85,418,769.65

Finding the Fourth Proportional to 152,398,584.65, 210,315,816.73 and 85,418,769.65

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Solution

The fourth proportional to 152,398,584.65, 210,315,816.73 and 85,418,769.65 is: 117,881,136.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,398,584.65 : 210,315,816.73 = 85,418,769.65 : x
  2. Step 2: Convert to fraction form
    152,398,584.65/210,315,816.73 = 85,418,769.65/x
  3. Step 3: Cross multiply
    152,398,584.65x = 210,315,816.73 × 85,418,769.65
  4. Step 4: Simplify right side
    152,398,584.65x = 17,964,918,303,011,486
  5. Step 5: Solve for x
    x = 17,964,918,303,011,486/152,398,584.65
  6. Step 6: Final answer
    x = 117,881,136.13

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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.