Home / 42,386,587,718.80-63,579,881,578.20-12,942,583,315.60

Finding the Fourth Proportional to 42,386,587,718.80, 63,579,881,578.20 and 12,942,583,315.60

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Solution

The fourth proportional to 42,386,587,718.80, 63,579,881,578.20 and 12,942,583,315.60 is: 19,413,874,973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,386,587,718.80 : 63,579,881,578.20 = 12,942,583,315.60 : x
  2. Step 2: Convert to fraction form
    42,386,587,718.80/63,579,881,578.20 = 12,942,583,315.60/x
  3. Step 3: Cross multiply
    42,386,587,718.80x = 63,579,881,578.20 × 12,942,583,315.60
  4. Step 4: Simplify right side
    42,386,587,718.80x = 822,887,914,521,835,077,632
  5. Step 5: Solve for x
    x = 822,887,914,521,835,077,632/42,386,587,718.80
  6. Step 6: Final answer
    x = 19,413,874,973.40

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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.