Home / 28,406,280.40-42,574,428.60-19,308,360.40

Finding the Fourth Proportional to 28,406,280.40, 42,574,428.60 and 19,308,360.40

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Solution

The fourth proportional to 28,406,280.40, 42,574,428.60 and 19,308,360.40 is: 28,938,755.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,406,280.40 : 42,574,428.60 = 19,308,360.40 : x
  2. Step 2: Convert to fraction form
    28,406,280.40/42,574,428.60 = 19,308,360.40/x
  3. Step 3: Cross multiply
    28,406,280.40x = 42,574,428.60 × 19,308,360.40
  4. Step 4: Simplify right side
    28,406,280.40x = 822,042,411,232,867.38
  5. Step 5: Solve for x
    x = 822,042,411,232,867.38/28,406,280.40
  6. Step 6: Final answer
    x = 28,938,755.78

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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.