Home / 459,862,047.60-689,793,071.40-426,605,650.80

Finding the Fourth Proportional to 459,862,047.60, 689,793,071.40 and 426,605,650.80

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Solution

The fourth proportional to 459,862,047.60, 689,793,071.40 and 426,605,650.80 is: 639,908,476.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,862,047.60 : 689,793,071.40 = 426,605,650.80 : x
  2. Step 2: Convert to fraction form
    459,862,047.60/689,793,071.40 = 426,605,650.80/x
  3. Step 3: Cross multiply
    459,862,047.60x = 689,793,071.40 × 426,605,650.80
  4. Step 4: Simplify right side
    459,862,047.60x = 294,269,622,141,927,872
  5. Step 5: Solve for x
    x = 294,269,622,141,927,872/459,862,047.60
  6. Step 6: Final answer
    x = 639,908,476.20

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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.