Home / 19,972,866,018.40-29,955,553,475.65-10,021,637,820.49

Finding the Fourth Proportional to 19,972,866,018.40, 29,955,553,475.65 and 10,021,637,820.49

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Solution

The fourth proportional to 19,972,866,018.40, 29,955,553,475.65 and 10,021,637,820.49 is: 15,030,577,352.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,972,866,018.40 : 29,955,553,475.65 = 10,021,637,820.49 : x
  2. Step 2: Convert to fraction form
    19,972,866,018.40/29,955,553,475.65 = 10,021,637,820.49/x
  3. Step 3: Cross multiply
    19,972,866,018.40x = 29,955,553,475.65 × 10,021,637,820.49
  4. Step 4: Simplify right side
    19,972,866,018.40x = 300,203,707,645,164,781,568
  5. Step 5: Solve for x
    x = 300,203,707,645,164,781,568/19,972,866,018.40
  6. Step 6: Final answer
    x = 15,030,577,352.73

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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.