Home / 420,704,901.54-630,858,735.02-245,878,089.84

Finding the Fourth Proportional to 420,704,901.54, 630,858,735.02 and 245,878,089.84

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Solution

The fourth proportional to 420,704,901.54, 630,858,735.02 and 245,878,089.84 is: 368,701,054.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,704,901.54 : 630,858,735.02 = 245,878,089.84 : x
  2. Step 2: Convert to fraction form
    420,704,901.54/630,858,735.02 = 245,878,089.84/x
  3. Step 3: Cross multiply
    420,704,901.54x = 630,858,735.02 × 245,878,089.84
  4. Step 4: Simplify right side
    420,704,901.54x = 155,114,340,725,596,320
  5. Step 5: Solve for x
    x = 155,114,340,725,596,320/420,704,901.54
  6. Step 6: Final answer
    x = 368,701,054.25

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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.