Home / 384,249,536.30-530,258,029.70-208,036,122.86

Finding the Fourth Proportional to 384,249,536.30, 530,258,029.70 and 208,036,122.86

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Solution

The fourth proportional to 384,249,536.30, 530,258,029.70 and 208,036,122.86 is: 287,086,422.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,249,536.30 : 530,258,029.70 = 208,036,122.86 : x
  2. Step 2: Convert to fraction form
    384,249,536.30/530,258,029.70 = 208,036,122.86/x
  3. Step 3: Cross multiply
    384,249,536.30x = 530,258,029.70 × 208,036,122.86
  4. Step 4: Simplify right side
    384,249,536.30x = 110,312,824,614,170,736
  5. Step 5: Solve for x
    x = 110,312,824,614,170,736/384,249,536.30
  6. Step 6: Final answer
    x = 287,086,422.22

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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.