Home / 459,688,259.60-689,868,312.60-323,639,363.60

Finding the Fourth Proportional to 459,688,259.60, 689,868,312.60 and 323,639,363.60

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Solution

The fourth proportional to 459,688,259.60, 689,868,312.60 and 323,639,363.60 is: 485,695,549.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,688,259.60 : 689,868,312.60 = 323,639,363.60 : x
  2. Step 2: Convert to fraction form
    459,688,259.60/689,868,312.60 = 323,639,363.60/x
  3. Step 3: Cross multiply
    459,688,259.60x = 689,868,312.60 × 323,639,363.60
  4. Step 4: Simplify right side
    459,688,259.60x = 223,268,541,657,669,888
  5. Step 5: Solve for x
    x = 223,268,541,657,669,888/459,688,259.60
  6. Step 6: Final answer
    x = 485,695,549.09

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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.