Home / 138,155,603.15-190,652,126.18-84,506,317.04

Finding the Fourth Proportional to 138,155,603.15, 190,652,126.18 and 84,506,317.04

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Solution

The fourth proportional to 138,155,603.15, 190,652,126.18 and 84,506,317.04 is: 116,617,123.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,155,603.15 : 190,652,126.18 = 84,506,317.04 : x
  2. Step 2: Convert to fraction form
    138,155,603.15/190,652,126.18 = 84,506,317.04/x
  3. Step 3: Cross multiply
    138,155,603.15x = 190,652,126.18 × 84,506,317.04
  4. Step 4: Simplify right side
    138,155,603.15x = 16,111,309,018,575,168
  5. Step 5: Solve for x
    x = 16,111,309,018,575,168/138,155,603.15
  6. Step 6: Final answer
    x = 116,617,123.38

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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.