Home / 459,862,275.10-689,793,412.65-426,605,878.30

Finding the Fourth Proportional to 459,862,275.10, 689,793,412.65 and 426,605,878.30

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Solution

The fourth proportional to 459,862,275.10, 689,793,412.65 and 426,605,878.30 is: 639,908,817.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,862,275.10 : 689,793,412.65 = 426,605,878.30 : x
  2. Step 2: Convert to fraction form
    459,862,275.10/689,793,412.65 = 426,605,878.30/x
  3. Step 3: Cross multiply
    459,862,275.10x = 689,793,412.65 × 426,605,878.30
  4. Step 4: Simplify right side
    459,862,275.10x = 294,269,924,649,107,584
  5. Step 5: Solve for x
    x = 294,269,924,649,107,584/459,862,275.10
  6. Step 6: Final answer
    x = 639,908,817.45

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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.