Home / 283,069,521.72-390,648,509.10-159,318,214.20

Finding the Fourth Proportional to 283,069,521.72, 390,648,509.10 and 159,318,214.20

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Solution

The fourth proportional to 283,069,521.72, 390,648,509.10 and 159,318,214.20 is: 219,866,209.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,069,521.72 : 390,648,509.10 = 159,318,214.20 : x
  2. Step 2: Convert to fraction form
    283,069,521.72/390,648,509.10 = 159,318,214.20/x
  3. Step 3: Cross multiply
    283,069,521.72x = 390,648,509.10 × 159,318,214.20
  4. Step 4: Simplify right side
    283,069,521.72x = 62,237,422,849,704,448
  5. Step 5: Solve for x
    x = 62,237,422,849,704,448/283,069,521.72
  6. Step 6: Final answer
    x = 219,866,209.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.