Home / 628,369,145.02-941,906,988.49-278,779,849.50

Finding the Fourth Proportional to 628,369,145.02, 941,906,988.49 and 278,779,849.50

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Solution

The fourth proportional to 628,369,145.02, 941,906,988.49 and 278,779,849.50 is: 417,882,848.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,369,145.02 : 941,906,988.49 = 278,779,849.50 : x
  2. Step 2: Convert to fraction form
    628,369,145.02/941,906,988.49 = 278,779,849.50/x
  3. Step 3: Cross multiply
    628,369,145.02x = 941,906,988.49 × 278,779,849.50
  4. Step 4: Simplify right side
    628,369,145.02x = 262,584,688,494,240,448
  5. Step 5: Solve for x
    x = 262,584,688,494,240,448/628,369,145.02
  6. Step 6: Final answer
    x = 417,882,848.92

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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.