Home / 278,131,837,359.60-417,197,756,039.40-68,752,586,415.60

Finding the Fourth Proportional to 278,131,837,359.60, 417,197,756,039.40 and 68,752,586,415.60

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Solution

The fourth proportional to 278,131,837,359.60, 417,197,756,039.40 and 68,752,586,415.60 is: 103,128,879,623.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,131,837,359.60 : 417,197,756,039.40 = 68,752,586,415.60 : x
  2. Step 2: Convert to fraction form
    278,131,837,359.60/417,197,756,039.40 = 68,752,586,415.60/x
  3. Step 3: Cross multiply
    278,131,837,359.60x = 417,197,756,039.40 × 68,752,586,415.60
  4. Step 4: Simplify right side
    278,131,837,359.60x = 28,683,424,774,493,260,742,656
  5. Step 5: Solve for x
    x = 28,683,424,774,493,260,742,656/278,131,837,359.60
  6. Step 6: Final answer
    x = 103,128,879,623.40

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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.