Home / 653,246,336.40-979,869,504.60-289,740,692.40

Finding the Fourth Proportional to 653,246,336.40, 979,869,504.60 and 289,740,692.40

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Solution

The fourth proportional to 653,246,336.40, 979,869,504.60 and 289,740,692.40 is: 434,611,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,246,336.40 : 979,869,504.60 = 289,740,692.40 : x
  2. Step 2: Convert to fraction form
    653,246,336.40/979,869,504.60 = 289,740,692.40/x
  3. Step 3: Cross multiply
    653,246,336.40x = 979,869,504.60 × 289,740,692.40
  4. Step 4: Simplify right side
    653,246,336.40x = 283,908,068,724,448,960
  5. Step 5: Solve for x
    x = 283,908,068,724,448,960/653,246,336.40
  6. Step 6: Final answer
    x = 434,611,038.60

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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.