Home / 15,169,874,409.72-20,934,272,484.86-8,395,706,141.91

Finding the Fourth Proportional to 15,169,874,409.72, 20,934,272,484.86 and 8,395,706,141.91

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Solution

The fourth proportional to 15,169,874,409.72, 20,934,272,484.86 and 8,395,706,141.91 is: 11,585,989,134.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,169,874,409.72 : 20,934,272,484.86 = 8,395,706,141.91 : x
  2. Step 2: Convert to fraction form
    15,169,874,409.72/20,934,272,484.86 = 8,395,706,141.91/x
  3. Step 3: Cross multiply
    15,169,874,409.72x = 20,934,272,484.86 × 8,395,706,141.91
  4. Step 4: Simplify right side
    15,169,874,409.72x = 175,758,000,077,514,637,312
  5. Step 5: Solve for x
    x = 175,758,000,077,514,637,312/15,169,874,409.72
  6. Step 6: Final answer
    x = 11,585,989,134.16

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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.