Home / 840,465,705.87-1,262,611,746.36-608,013,412.47

Finding the Fourth Proportional to 840,465,705.87, 1,262,611,746.36 and 608,013,412.47

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Solution

The fourth proportional to 840,465,705.87, 1,262,611,746.36 and 608,013,412.47 is: 913,404,165.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,465,705.87 : 1,262,611,746.36 = 608,013,412.47 : x
  2. Step 2: Convert to fraction form
    840,465,705.87/1,262,611,746.36 = 608,013,412.47/x
  3. Step 3: Cross multiply
    840,465,705.87x = 1,262,611,746.36 × 608,013,412.47
  4. Step 4: Simplify right side
    840,465,705.87x = 767,684,876,522,736,640
  5. Step 5: Solve for x
    x = 767,684,876,522,736,640/840,465,705.87
  6. Step 6: Final answer
    x = 913,404,165.29

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1.5x scale

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.