Home / 68,352,427.20-102,528,640.80-42,872,030.40

Finding the Fourth Proportional to 68,352,427.20, 102,528,640.80 and 42,872,030.40

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Solution

The fourth proportional to 68,352,427.20, 102,528,640.80 and 42,872,030.40 is: 64,308,045.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,352,427.20 : 102,528,640.80 = 42,872,030.40 : x
  2. Step 2: Convert to fraction form
    68,352,427.20/102,528,640.80 = 42,872,030.40/x
  3. Step 3: Cross multiply
    68,352,427.20x = 102,528,640.80 × 42,872,030.40
  4. Step 4: Simplify right side
    68,352,427.20x = 4,395,611,005,248,280
  5. Step 5: Solve for x
    x = 4,395,611,005,248,280/68,352,427.20
  6. Step 6: Final answer
    x = 64,308,045.60

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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.