Home / 152,592,792.78-210,619,216.25-99,668,378.14

Finding the Fourth Proportional to 152,592,792.78, 210,619,216.25 and 99,668,378.14

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Solution

The fourth proportional to 152,592,792.78, 210,619,216.25 and 99,668,378.14 is: 137,569,247.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,592,792.78 : 210,619,216.25 = 99,668,378.14 : x
  2. Step 2: Convert to fraction form
    152,592,792.78/210,619,216.25 = 99,668,378.14/x
  3. Step 3: Cross multiply
    152,592,792.78x = 210,619,216.25 × 99,668,378.14
  4. Step 4: Simplify right side
    152,592,792.78x = 20,992,075,688,755,432
  5. Step 5: Solve for x
    x = 20,992,075,688,755,432/152,592,792.78
  6. Step 6: Final answer
    x = 137,569,247.58

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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.