Home / 421,965,521,968.65-632,948,282,952.98-243,442,160,637.45

Finding the Fourth Proportional to 421,965,521,968.65, 632,948,282,952.98 and 243,442,160,637.45

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Solution

The fourth proportional to 421,965,521,968.65, 632,948,282,952.98 and 243,442,160,637.45 is: 365,163,240,956.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,965,521,968.65 : 632,948,282,952.98 = 243,442,160,637.45 : x
  2. Step 2: Convert to fraction form
    421,965,521,968.65/632,948,282,952.98 = 243,442,160,637.45/x
  3. Step 3: Cross multiply
    421,965,521,968.65x = 632,948,282,952.98 × 243,442,160,637.45
  4. Step 4: Simplify right side
    421,965,521,968.65x = 154,086,297,573,837,525,483,520
  5. Step 5: Solve for x
    x = 154,086,297,573,837,525,483,520/421,965,521,968.65
  6. Step 6: Final answer
    x = 365,163,240,956.18

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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.