Home / 78,572,835,078.40-117,857,550,929.10-21,911,186,225.35

Finding the Fourth Proportional to 78,572,835,078.40, 117,857,550,929.10 and 21,911,186,225.35

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Solution

The fourth proportional to 78,572,835,078.40, 117,857,550,929.10 and 21,911,186,225.35 is: 32,866,304,797.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,572,835,078.40 : 117,857,550,929.10 = 21,911,186,225.35 : x
  2. Step 2: Convert to fraction form
    78,572,835,078.40/117,857,550,929.10 = 21,911,186,225.35/x
  3. Step 3: Cross multiply
    78,572,835,078.40x = 117,857,550,929.10 × 21,911,186,225.35
  4. Step 4: Simplify right side
    78,572,835,078.40x = 2,582,398,746,471,182,106,624
  5. Step 5: Solve for x
    x = 2,582,398,746,471,182,106,624/78,572,835,078.40
  6. Step 6: Final answer
    x = 32,866,304,797.26

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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.