Home / 1,299,307,135.40-1,948,960,703.10-1,009,069,490.60

Finding the Fourth Proportional to 1,299,307,135.40, 1,948,960,703.10 and 1,009,069,490.60

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Solution

The fourth proportional to 1,299,307,135.40, 1,948,960,703.10 and 1,009,069,490.60 is: 1,513,604,235.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,307,135.40 : 1,948,960,703.10 = 1,009,069,490.60 : x
  2. Step 2: Convert to fraction form
    1,299,307,135.40/1,948,960,703.10 = 1,009,069,490.60/x
  3. Step 3: Cross multiply
    1,299,307,135.40x = 1,948,960,703.10 × 1,009,069,490.60
  4. Step 4: Simplify right side
    1,299,307,135.40x = 1,966,636,783,876,534,784
  5. Step 5: Solve for x
    x = 1,966,636,783,876,534,784/1,299,307,135.40
  6. Step 6: Final answer
    x = 1,513,604,235.90

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Double scale
Find fourth proportional to 1,299,307,136.40, 1,948,960,704.60 and 1,009,069,491.60
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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.