Home / 628,310,007.80-942,465,011.70-197,488,503.80

Finding the Fourth Proportional to 628,310,007.80, 942,465,011.70 and 197,488,503.80

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Solution

The fourth proportional to 628,310,007.80, 942,465,011.70 and 197,488,503.80 is: 296,232,755.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,310,007.80 : 942,465,011.70 = 197,488,503.80 : x
  2. Step 2: Convert to fraction form
    628,310,007.80/942,465,011.70 = 197,488,503.80/x
  3. Step 3: Cross multiply
    628,310,007.80x = 942,465,011.70 × 197,488,503.80
  4. Step 4: Simplify right side
    628,310,007.80x = 186,126,005,044,482,528
  5. Step 5: Solve for x
    x = 186,126,005,044,482,528/628,310,007.80
  6. Step 6: Final answer
    x = 296,232,755.70

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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.