Home / 405,044,218.80-607,566,328.20-398,587,210.65

Finding the Fourth Proportional to 405,044,218.80, 607,566,328.20 and 398,587,210.65

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Solution

The fourth proportional to 405,044,218.80, 607,566,328.20 and 398,587,210.65 is: 597,880,815.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,044,218.80 : 607,566,328.20 = 398,587,210.65 : x
  2. Step 2: Convert to fraction form
    405,044,218.80/607,566,328.20 = 398,587,210.65/x
  3. Step 3: Cross multiply
    405,044,218.80x = 607,566,328.20 × 398,587,210.65
  4. Step 4: Simplify right side
    405,044,218.80x = 242,168,168,042,100,448
  5. Step 5: Solve for x
    x = 242,168,168,042,100,448/405,044,218.80
  6. Step 6: Final answer
    x = 597,880,815.98

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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.