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Finding the Fourth Proportional to 1,303,842,652.20, 1,955,763,978.30 and 786,006,541.80

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Solution

The fourth proportional to 1,303,842,652.20, 1,955,763,978.30 and 786,006,541.80 is: 1,179,009,812.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,303,842,652.20 : 1,955,763,978.30 = 786,006,541.80 : x
  2. Step 2: Convert to fraction form
    1,303,842,652.20/1,955,763,978.30 = 786,006,541.80/x
  3. Step 3: Cross multiply
    1,303,842,652.20x = 1,955,763,978.30 × 786,006,541.80
  4. Step 4: Simplify right side
    1,303,842,652.20x = 1,537,243,281,160,593,152
  5. Step 5: Solve for x
    x = 1,537,243,281,160,593,152/1,303,842,652.20
  6. Step 6: Final answer
    x = 1,179,009,812.70

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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.