Home / 1,128,105,518.60-1,688,575,097.10-805,619,246.60

Finding the Fourth Proportional to 1,128,105,518.60, 1,688,575,097.10 and 805,619,246.60

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Solution

The fourth proportional to 1,128,105,518.60, 1,688,575,097.10 and 805,619,246.60 is: 1,205,869,996.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,105,518.60 : 1,688,575,097.10 = 805,619,246.60 : x
  2. Step 2: Convert to fraction form
    1,128,105,518.60/1,688,575,097.10 = 805,619,246.60/x
  3. Step 3: Cross multiply
    1,128,105,518.60x = 1,688,575,097.10 × 805,619,246.60
  4. Step 4: Simplify right side
    1,128,105,518.60x = 1,360,348,597,553,223,936
  5. Step 5: Solve for x
    x = 1,360,348,597,553,223,936/1,128,105,518.60
  6. Step 6: Final answer
    x = 1,205,869,996.31

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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.