Home / 207,180,869.20-310,771,303.80-198,334,891.60

Finding the Fourth Proportional to 207,180,869.20, 310,771,303.80 and 198,334,891.60

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Solution

The fourth proportional to 207,180,869.20, 310,771,303.80 and 198,334,891.60 is: 297,502,337.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,180,869.20 : 310,771,303.80 = 198,334,891.60 : x
  2. Step 2: Convert to fraction form
    207,180,869.20/310,771,303.80 = 198,334,891.60/x
  3. Step 3: Cross multiply
    207,180,869.20x = 310,771,303.80 × 198,334,891.60
  4. Step 4: Simplify right side
    207,180,869.20x = 61,636,792,851,563,672
  5. Step 5: Solve for x
    x = 61,636,792,851,563,672/207,180,869.20
  6. Step 6: Final answer
    x = 297,502,337.40

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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.