Home / 1,565,645,019.31-2,160,462,340.74-921,799,327.06

Finding the Fourth Proportional to 1,565,645,019.31, 2,160,462,340.74 and 921,799,327.06

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Solution

The fourth proportional to 1,565,645,019.31, 2,160,462,340.74 and 921,799,327.06 is: 1,272,007,835.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565,645,019.31 : 2,160,462,340.74 = 921,799,327.06 : x
  2. Step 2: Convert to fraction form
    1,565,645,019.31/2,160,462,340.74 = 921,799,327.06/x
  3. Step 3: Cross multiply
    1,565,645,019.31x = 2,160,462,340.74 × 921,799,327.06
  4. Step 4: Simplify right side
    1,565,645,019.31x = 1,991,512,731,832,604,160
  5. Step 5: Solve for x
    x = 1,991,512,731,832,604,160/1,565,645,019.31
  6. Step 6: Final answer
    x = 1,272,007,835.28

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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.