Home / 1,565,645,021.31-2,160,462,343.50-921,799,329.06

Finding the Fourth Proportional to 1,565,645,021.31, 2,160,462,343.50 and 921,799,329.06

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Solution

The fourth proportional to 1,565,645,021.31, 2,160,462,343.50 and 921,799,329.06 is: 1,272,007,838.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,645,021.31 : 2,160,462,343.50 = 921,799,329.06 : x
  2. Step 2: Convert to fraction form
    1,565,645,021.31/2,160,462,343.50 = 921,799,329.06/x
  3. Step 3: Cross multiply
    1,565,645,021.31x = 2,160,462,343.50 × 921,799,329.06
  4. Step 4: Simplify right side
    1,565,645,021.31x = 1,991,512,738,697,695,232
  5. Step 5: Solve for x
    x = 1,991,512,738,697,695,232/1,565,645,021.31
  6. Step 6: Final answer
    x = 1,272,007,838.04

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Double scale
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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.