Home / 42,768,047.20-64,152,070.80-40,248,623.20

Finding the Fourth Proportional to 42,768,047.20, 64,152,070.80 and 40,248,623.20

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Solution

The fourth proportional to 42,768,047.20, 64,152,070.80 and 40,248,623.20 is: 60,372,934.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,768,047.20 : 64,152,070.80 = 40,248,623.20 : x
  2. Step 2: Convert to fraction form
    42,768,047.20/64,152,070.80 = 40,248,623.20/x
  3. Step 3: Cross multiply
    42,768,047.20x = 64,152,070.80 × 40,248,623.20
  4. Step 4: Simplify right side
    42,768,047.20x = 2,582,032,525,128,922.50
  5. Step 5: Solve for x
    x = 2,582,032,525,128,922.50/42,768,047.20
  6. Step 6: Final answer
    x = 60,372,934.80

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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.