Home / 1,299,257,877.60-1,948,886,816.40-782,697,225.60

Finding the Fourth Proportional to 1,299,257,877.60, 1,948,886,816.40 and 782,697,225.60

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Solution

The fourth proportional to 1,299,257,877.60, 1,948,886,816.40 and 782,697,225.60 is: 1,174,045,838.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,257,877.60 : 1,948,886,816.40 = 782,697,225.60 : x
  2. Step 2: Convert to fraction form
    1,299,257,877.60/1,948,886,816.40 = 782,697,225.60/x
  3. Step 3: Cross multiply
    1,299,257,877.60x = 1,948,886,816.40 × 782,697,225.60
  4. Step 4: Simplify right side
    1,299,257,877.60x = 1,525,388,304,204,696,576
  5. Step 5: Solve for x
    x = 1,525,388,304,204,696,576/1,299,257,877.60
  6. Step 6: Final answer
    x = 1,174,045,838.40

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Double scale
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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.