Home / 65,249,987.09-90,022,942.32-36,989,328.26

Finding the Fourth Proportional to 65,249,987.09, 90,022,942.32 and 36,989,328.26

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Solution

The fourth proportional to 65,249,987.09, 90,022,942.32 and 36,989,328.26 is: 51,032,778.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,249,987.09 : 90,022,942.32 = 36,989,328.26 : x
  2. Step 2: Convert to fraction form
    65,249,987.09/90,022,942.32 = 36,989,328.26/x
  3. Step 3: Cross multiply
    65,249,987.09x = 90,022,942.32 × 36,989,328.26
  4. Step 4: Simplify right side
    65,249,987.09x = 3,329,888,163,955,411
  5. Step 5: Solve for x
    x = 3,329,888,163,955,411/65,249,987.09
  6. Step 6: Final answer
    x = 51,032,778.90

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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.