Home / 1,345,896,321.60-2,019,033,439.20-425,676,705.60

Finding the Fourth Proportional to 1,345,896,321.60, 2,019,033,439.20 and 425,676,705.60

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Solution

The fourth proportional to 1,345,896,321.60, 2,019,033,439.20 and 425,676,705.60 is: 638,574,821.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345,896,321.60 : 2,019,033,439.20 = 425,676,705.60 : x
  2. Step 2: Convert to fraction form
    1,345,896,321.60/2,019,033,439.20 = 425,676,705.60/x
  3. Step 3: Cross multiply
    1,345,896,321.60x = 2,019,033,439.20 × 425,676,705.60
  4. Step 4: Simplify right side
    1,345,896,321.60x = 859,455,502,894,893,952
  5. Step 5: Solve for x
    x = 859,455,502,894,893,952/1,345,896,321.60
  6. Step 6: Final answer
    x = 638,574,821.18

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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.