Home / 927,284,428.80-1,390,926,643.20-830,538,547.20

Finding the Fourth Proportional to 927,284,428.80, 1,390,926,643.20 and 830,538,547.20

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Solution

The fourth proportional to 927,284,428.80, 1,390,926,643.20 and 830,538,547.20 is: 1,245,807,820.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,284,428.80 : 1,390,926,643.20 = 830,538,547.20 : x
  2. Step 2: Convert to fraction form
    927,284,428.80/1,390,926,643.20 = 830,538,547.20/x
  3. Step 3: Cross multiply
    927,284,428.80x = 1,390,926,643.20 × 830,538,547.20
  4. Step 4: Simplify right side
    927,284,428.80x = 1,155,218,193,505,100,800
  5. Step 5: Solve for x
    x = 1,155,218,193,505,100,800/927,284,428.80
  6. Step 6: Final answer
    x = 1,245,807,820.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.