Home / 30,448,726.25-42,020,068.47-17,219,881.40

Finding the Fourth Proportional to 30,448,726.25, 42,020,068.47 and 17,219,881.40

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Solution

The fourth proportional to 30,448,726.25, 42,020,068.47 and 17,219,881.40 is: 23,763,903.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,448,726.25 : 42,020,068.47 = 17,219,881.40 : x
  2. Step 2: Convert to fraction form
    30,448,726.25/42,020,068.47 = 17,219,881.40/x
  3. Step 3: Cross multiply
    30,448,726.25x = 42,020,068.47 × 17,219,881.40
  4. Step 4: Simplify right side
    30,448,726.25x = 723,580,595,473,279.38
  5. Step 5: Solve for x
    x = 723,580,595,473,279.38/30,448,726.25
  6. Step 6: Final answer
    x = 23,763,903.60

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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.