Home / 28,533,084.84-42,742,940.21-15,721,813.80

Finding the Fourth Proportional to 28,533,084.84, 42,742,940.21 and 15,721,813.80

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Solution

The fourth proportional to 28,533,084.84, 42,742,940.21 and 15,721,813.80 is: 23,551,485.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,533,084.84 : 42,742,940.21 = 15,721,813.80 : x
  2. Step 2: Convert to fraction form
    28,533,084.84/42,742,940.21 = 15,721,813.80/x
  3. Step 3: Cross multiply
    28,533,084.84x = 42,742,940.21 × 15,721,813.80
  4. Step 4: Simplify right side
    28,533,084.84x = 671,996,547,032,438.25
  5. Step 5: Solve for x
    x = 671,996,547,032,438.25/28,533,084.84
  6. Step 6: Final answer
    x = 23,551,485.97

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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.