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Finding the Fourth Proportional to 373,249,990.80, 521,340,663.60 and 373,249,990.80

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Solution

The fourth proportional to 373,249,990.80, 521,340,663.60 and 373,249,990.80 is: 521,340,663.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,249,990.80 : 521,340,663.60 = 373,249,990.80 : x
  2. Step 2: Convert to fraction form
    373,249,990.80/521,340,663.60 = 373,249,990.80/x
  3. Step 3: Cross multiply
    373,249,990.80x = 521,340,663.60 × 373,249,990.80
  4. Step 4: Simplify right side
    373,249,990.80x = 194,590,397,892,365,920
  5. Step 5: Solve for x
    x = 194,590,397,892,365,920/373,249,990.80
  6. Step 6: Final answer
    x = 521,340,663.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.