Home / 109,878,235,834.12-151,636,057,665.16-65,889,514,113.55

Finding the Fourth Proportional to 109,878,235,834.12, 151,636,057,665.16 and 65,889,514,113.55

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Solution

The fourth proportional to 109,878,235,834.12, 151,636,057,665.16 and 65,889,514,113.55 is: 90,929,983,411.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,878,235,834.12 : 151,636,057,665.16 = 65,889,514,113.55 : x
  2. Step 2: Convert to fraction form
    109,878,235,834.12/151,636,057,665.16 = 65,889,514,113.55/x
  3. Step 3: Cross multiply
    109,878,235,834.12x = 151,636,057,665.16 × 65,889,514,113.55
  4. Step 4: Simplify right side
    109,878,235,834.12x = 9,991,226,161,651,641,221,120
  5. Step 5: Solve for x
    x = 9,991,226,161,651,641,221,120/109,878,235,834.12
  6. Step 6: Final answer
    x = 90,929,983,411.23

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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.