Home / 689,663,409.60-1,034,495,114.40-662,453,630.40

Finding the Fourth Proportional to 689,663,409.60, 1,034,495,114.40 and 662,453,630.40

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Solution

The fourth proportional to 689,663,409.60, 1,034,495,114.40 and 662,453,630.40 is: 993,680,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,663,409.60 : 1,034,495,114.40 = 662,453,630.40 : x
  2. Step 2: Convert to fraction form
    689,663,409.60/1,034,495,114.40 = 662,453,630.40/x
  3. Step 3: Cross multiply
    689,663,409.60x = 1,034,495,114.40 × 662,453,630.40
  4. Step 4: Simplify right side
    689,663,409.60x = 685,305,044,165,343,232
  5. Step 5: Solve for x
    x = 685,305,044,165,343,232/689,663,409.60
  6. Step 6: Final answer
    x = 993,680,445.60

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1.5x scale

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.