Home / 1,257,985,281.60-1,886,977,922.40-890,653,262.40

Finding the Fourth Proportional to 1,257,985,281.60, 1,886,977,922.40 and 890,653,262.40

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Solution

The fourth proportional to 1,257,985,281.60, 1,886,977,922.40 and 890,653,262.40 is: 1,335,979,893.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,985,281.60 : 1,886,977,922.40 = 890,653,262.40 : x
  2. Step 2: Convert to fraction form
    1,257,985,281.60/1,886,977,922.40 = 890,653,262.40/x
  3. Step 3: Cross multiply
    1,257,985,281.60x = 1,886,977,922.40 × 890,653,262.40
  4. Step 4: Simplify right side
    1,257,985,281.60x = 1,680,643,042,662,333,952
  5. Step 5: Solve for x
    x = 1,680,643,042,662,333,952/1,257,985,281.60
  6. Step 6: Final answer
    x = 1,335,979,893.60

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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.