Home / 42,838,410,642.90-64,257,889,787.36-12,585,425,669.46

Finding the Fourth Proportional to 42,838,410,642.90, 64,257,889,787.36 and 12,585,425,669.46

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Solution

The fourth proportional to 42,838,410,642.90, 64,257,889,787.36 and 12,585,425,669.46 is: 18,878,218,950.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,838,410,642.90 : 64,257,889,787.36 = 12,585,425,669.46 : x
  2. Step 2: Convert to fraction form
    42,838,410,642.90/64,257,889,787.36 = 12,585,425,669.46/x
  3. Step 3: Cross multiply
    42,838,410,642.90x = 64,257,889,787.36 × 12,585,425,669.46
  4. Step 4: Simplify right side
    42,838,410,642.90x = 808,712,895,595,173,511,168
  5. Step 5: Solve for x
    x = 808,712,895,595,173,511,168/42,838,410,642.90
  6. Step 6: Final answer
    x = 18,878,218,950.20

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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.