Home / 288,596,772.51-432,895,306.38-70,247,151.78

Finding the Fourth Proportional to 288,596,772.51, 432,895,306.38 and 70,247,151.78

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Solution

The fourth proportional to 288,596,772.51, 432,895,306.38 and 70,247,151.78 is: 105,370,763.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,596,772.51 : 432,895,306.38 = 70,247,151.78 : x
  2. Step 2: Convert to fraction form
    288,596,772.51/432,895,306.38 = 70,247,151.78/x
  3. Step 3: Cross multiply
    288,596,772.51x = 432,895,306.38 × 70,247,151.78
  4. Step 4: Simplify right side
    288,596,772.51x = 30,409,662,289,960,988
  5. Step 5: Solve for x
    x = 30,409,662,289,960,988/288,596,772.51
  6. Step 6: Final answer
    x = 105,370,763.60

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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.