Home / 243,259,038.74-335,702,894.16-138,835,015.67

Finding the Fourth Proportional to 243,259,038.74, 335,702,894.16 and 138,835,015.67

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Solution

The fourth proportional to 243,259,038.74, 335,702,894.16 and 138,835,015.67 is: 191,595,415.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,259,038.74 : 335,702,894.16 = 138,835,015.67 : x
  2. Step 2: Convert to fraction form
    243,259,038.74/335,702,894.16 = 138,835,015.67/x
  3. Step 3: Cross multiply
    243,259,038.74x = 335,702,894.16 × 138,835,015.67
  4. Step 4: Simplify right side
    243,259,038.74x = 46,607,316,569,489,440
  5. Step 5: Solve for x
    x = 46,607,316,569,489,440/243,259,038.74
  6. Step 6: Final answer
    x = 191,595,415.37

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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.