Home / 841,640,932.05-1,161,500,355.96-470,362,952.49

Finding the Fourth Proportional to 841,640,932.05, 1,161,500,355.96 and 470,362,952.49

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Solution

The fourth proportional to 841,640,932.05, 1,161,500,355.96 and 470,362,952.49 is: 649,120,920.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,640,932.05 : 1,161,500,355.96 = 470,362,952.49 : x
  2. Step 2: Convert to fraction form
    841,640,932.05/1,161,500,355.96 = 470,362,952.49/x
  3. Step 3: Cross multiply
    841,640,932.05x = 1,161,500,355.96 × 470,362,952.49
  4. Step 4: Simplify right side
    841,640,932.05x = 546,326,736,747,531,584
  5. Step 5: Solve for x
    x = 546,326,736,747,531,584/841,640,932.05
  6. Step 6: Final answer
    x = 649,120,920.74

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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.