Home / 153,942,834,589.42-230,616,401,786.78-86,585,423,873.63

Finding the Fourth Proportional to 153,942,834,589.42, 230,616,401,786.78 and 86,585,423,873.63

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Solution

The fourth proportional to 153,942,834,589.42, 230,616,401,786.78 and 86,585,423,873.63 is: 129,710,609,488.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,942,834,589.42 : 230,616,401,786.78 = 86,585,423,873.63 : x
  2. Step 2: Convert to fraction form
    153,942,834,589.42/230,616,401,786.78 = 86,585,423,873.63/x
  3. Step 3: Cross multiply
    153,942,834,589.42x = 230,616,401,786.78 × 86,585,423,873.63
  4. Step 4: Simplify right side
    153,942,834,589.42x = 19,968,018,900,919,248,748,544
  5. Step 5: Solve for x
    x = 19,968,018,900,919,248,748,544/153,942,834,589.42
  6. Step 6: Final answer
    x = 129,710,609,488.10

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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.