Home / 550,566,006.40-825,849,009.60-386,988,466.60

Finding the Fourth Proportional to 550,566,006.40, 825,849,009.60 and 386,988,466.60

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Solution

The fourth proportional to 550,566,006.40, 825,849,009.60 and 386,988,466.60 is: 580,482,699.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,566,006.40 : 825,849,009.60 = 386,988,466.60 : x
  2. Step 2: Convert to fraction form
    550,566,006.40/825,849,009.60 = 386,988,466.60/x
  3. Step 3: Cross multiply
    550,566,006.40x = 825,849,009.60 × 386,988,466.60
  4. Step 4: Simplify right side
    550,566,006.40x = 319,594,041,868,232,704
  5. Step 5: Solve for x
    x = 319,594,041,868,232,704/550,566,006.40
  6. Step 6: Final answer
    x = 580,482,699.90

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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.