Home / 28,081,157,715.90-42,121,736,573.85-9,442,458,963.90

Finding the Fourth Proportional to 28,081,157,715.90, 42,121,736,573.85 and 9,442,458,963.90

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Solution

The fourth proportional to 28,081,157,715.90, 42,121,736,573.85 and 9,442,458,963.90 is: 14,163,688,445.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,081,157,715.90 : 42,121,736,573.85 = 9,442,458,963.90 : x
  2. Step 2: Convert to fraction form
    28,081,157,715.90/42,121,736,573.85 = 9,442,458,963.90/x
  3. Step 3: Cross multiply
    28,081,157,715.90x = 42,121,736,573.85 × 9,442,458,963.90
  4. Step 4: Simplify right side
    28,081,157,715.90x = 397,732,769,086,784,405,504
  5. Step 5: Solve for x
    x = 397,732,769,086,784,405,504/28,081,157,715.90
  6. Step 6: Final answer
    x = 14,163,688,445.85

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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.