Home / 259,583,009.66-389,249,625.85-86,939,086.40

Finding the Fourth Proportional to 259,583,009.66, 389,249,625.85 and 86,939,086.40

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Solution

The fourth proportional to 259,583,009.66, 389,249,625.85 and 86,939,086.40 is: 130,366,802.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,583,009.66 : 389,249,625.85 = 86,939,086.40 : x
  2. Step 2: Convert to fraction form
    259,583,009.66/389,249,625.85 = 86,939,086.40/x
  3. Step 3: Cross multiply
    259,583,009.66x = 389,249,625.85 × 86,939,086.40
  4. Step 4: Simplify right side
    259,583,009.66x = 33,841,006,850,559,880
  5. Step 5: Solve for x
    x = 33,841,006,850,559,880/259,583,009.66
  6. Step 6: Final answer
    x = 130,366,802.11

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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.