Home / 138,119,248,089.46-190,604,857,756.42-77,972,217,172.22

Finding the Fourth Proportional to 138,119,248,089.46, 190,604,857,756.42 and 77,972,217,172.22

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Solution

The fourth proportional to 138,119,248,089.46, 190,604,857,756.42 and 77,972,217,172.22 is: 107,601,826,455.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,119,248,089.46 : 190,604,857,756.42 = 77,972,217,172.22 : x
  2. Step 2: Convert to fraction form
    138,119,248,089.46/190,604,857,756.42 = 77,972,217,172.22/x
  3. Step 3: Cross multiply
    138,119,248,089.46x = 190,604,857,756.42 × 77,972,217,172.22
  4. Step 4: Simplify right side
    138,119,248,089.46x = 14,861,883,363,063,683,350,528
  5. Step 5: Solve for x
    x = 14,861,883,363,063,683,350,528/138,119,248,089.46
  6. Step 6: Final answer
    x = 107,601,826,455.34

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1.5x scale

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.