Home / 718,569,068.40-1,077,853,602.60-645,867,939.60

Finding the Fourth Proportional to 718,569,068.40, 1,077,853,602.60 and 645,867,939.60

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Solution

The fourth proportional to 718,569,068.40, 1,077,853,602.60 and 645,867,939.60 is: 968,801,909.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,569,068.40 : 1,077,853,602.60 = 645,867,939.60 : x
  2. Step 2: Convert to fraction form
    718,569,068.40/1,077,853,602.60 = 645,867,939.60/x
  3. Step 3: Cross multiply
    718,569,068.40x = 1,077,853,602.60 × 645,867,939.60
  4. Step 4: Simplify right side
    718,569,068.40x = 696,151,085,501,699,200
  5. Step 5: Solve for x
    x = 696,151,085,501,699,200/718,569,068.40
  6. Step 6: Final answer
    x = 968,801,909.40

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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.