Home / 245,014,857.90-367,415,998.65-81,189,312.30

Finding the Fourth Proportional to 245,014,857.90, 367,415,998.65 and 81,189,312.30

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Solution

The fourth proportional to 245,014,857.90, 367,415,998.65 and 81,189,312.30 is: 121,748,748.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,014,857.90 : 367,415,998.65 = 81,189,312.30 : x
  2. Step 2: Convert to fraction form
    245,014,857.90/367,415,998.65 = 81,189,312.30/x
  3. Step 3: Cross multiply
    245,014,857.90x = 367,415,998.65 × 81,189,312.30
  4. Step 4: Simplify right side
    245,014,857.90x = 29,830,252,258,411,224
  5. Step 5: Solve for x
    x = 29,830,252,258,411,224/245,014,857.90
  6. Step 6: Final answer
    x = 121,748,748.28

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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.