Home / 1,248,178,905.60-1,872,492,307.20-521,241,100.80

Finding the Fourth Proportional to 1,248,178,905.60, 1,872,492,307.20 and 521,241,100.80

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Solution

The fourth proportional to 1,248,178,905.60, 1,872,492,307.20 and 521,241,100.80 is: 781,955,172.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,178,905.60 : 1,872,492,307.20 = 521,241,100.80 : x
  2. Step 2: Convert to fraction form
    1,248,178,905.60/1,872,492,307.20 = 521,241,100.80/x
  3. Step 3: Cross multiply
    1,248,178,905.60x = 1,872,492,307.20 × 521,241,100.80
  4. Step 4: Simplify right side
    1,248,178,905.60x = 976,019,951,444,459,776
  5. Step 5: Solve for x
    x = 976,019,951,444,459,776/1,248,178,905.60
  6. Step 6: Final answer
    x = 781,955,172.50

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Double scale
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1.5x scale

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.