Home / 279,377,424,007.20-419,066,136,010.80-80,637,196,730.40

Finding the Fourth Proportional to 279,377,424,007.20, 419,066,136,010.80 and 80,637,196,730.40

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Solution

The fourth proportional to 279,377,424,007.20, 419,066,136,010.80 and 80,637,196,730.40 is: 120,955,795,095.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,377,424,007.20 : 419,066,136,010.80 = 80,637,196,730.40 : x
  2. Step 2: Convert to fraction form
    279,377,424,007.20/419,066,136,010.80 = 80,637,196,730.40/x
  3. Step 3: Cross multiply
    279,377,424,007.20x = 419,066,136,010.80 × 80,637,196,730.40
  4. Step 4: Simplify right side
    279,377,424,007.20x = 33,792,318,452,551,441,711,104
  5. Step 5: Solve for x
    x = 33,792,318,452,551,441,711,104/279,377,424,007.20
  6. Step 6: Final answer
    x = 120,955,795,095.60

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1.5x scale

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.