Home / 521,918,461.60-782,877,692.40-349,925,783.20

Finding the Fourth Proportional to 521,918,461.60, 782,877,692.40 and 349,925,783.20

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Solution

The fourth proportional to 521,918,461.60, 782,877,692.40 and 349,925,783.20 is: 524,888,674.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,918,461.60 : 782,877,692.40 = 349,925,783.20 : x
  2. Step 2: Convert to fraction form
    521,918,461.60/782,877,692.40 = 349,925,783.20/x
  3. Step 3: Cross multiply
    521,918,461.60x = 782,877,692.40 × 349,925,783.20
  4. Step 4: Simplify right side
    521,918,461.60x = 273,949,089,662,878,656
  5. Step 5: Solve for x
    x = 273,949,089,662,878,656/521,918,461.60
  6. Step 6: Final answer
    x = 524,888,674.80

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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.