Home / 15,507,799,959.02-21,400,198,942.95-8,640,841,784.45

Finding the Fourth Proportional to 15,507,799,959.02, 21,400,198,942.95 and 8,640,841,784.45

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Solution

The fourth proportional to 15,507,799,959.02, 21,400,198,942.95 and 8,640,841,784.45 is: 11,924,046,848.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,507,799,959.02 : 21,400,198,942.95 = 8,640,841,784.45 : x
  2. Step 2: Convert to fraction form
    15,507,799,959.02/21,400,198,942.95 = 8,640,841,784.45/x
  3. Step 3: Cross multiply
    15,507,799,959.02x = 21,400,198,942.95 × 8,640,841,784.45
  4. Step 4: Simplify right side
    15,507,799,959.02x = 184,915,733,221,678,088,192
  5. Step 5: Solve for x
    x = 184,915,733,221,678,088,192/15,507,799,959.02
  6. Step 6: Final answer
    x = 11,924,046,848.06

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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.