Home / 445,709,036,020.64-668,666,837,988.72-127,359,381,090.72

Finding the Fourth Proportional to 445,709,036,020.64, 668,666,837,988.72 and 127,359,381,090.72

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Solution

The fourth proportional to 445,709,036,020.64, 668,666,837,988.72 and 127,359,381,090.72 is: 191,068,584,569.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,709,036,020.64 : 668,666,837,988.72 = 127,359,381,090.72 : x
  2. Step 2: Convert to fraction form
    445,709,036,020.64/668,666,837,988.72 = 127,359,381,090.72/x
  3. Step 3: Cross multiply
    445,709,036,020.64x = 668,666,837,988.72 × 127,359,381,090.72
  4. Step 4: Simplify right side
    445,709,036,020.64x = 85,160,994,642,132,115,390,464
  5. Step 5: Solve for x
    x = 85,160,994,642,132,115,390,464/445,709,036,020.64
  6. Step 6: Final answer
    x = 191,068,584,569.12

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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.