Home / 1,020,348,974.40-1,530,523,461.60-816,275,630.40

Finding the Fourth Proportional to 1,020,348,974.40, 1,530,523,461.60 and 816,275,630.40

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Solution

The fourth proportional to 1,020,348,974.40, 1,530,523,461.60 and 816,275,630.40 is: 1,224,413,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,348,974.40 : 1,530,523,461.60 = 816,275,630.40 : x
  2. Step 2: Convert to fraction form
    1,020,348,974.40/1,530,523,461.60 = 816,275,630.40/x
  3. Step 3: Cross multiply
    1,020,348,974.40x = 1,530,523,461.60 × 816,275,630.40
  4. Step 4: Simplify right side
    1,020,348,974.40x = 1,249,329,003,459,529,984
  5. Step 5: Solve for x
    x = 1,249,329,003,459,529,984/1,020,348,974.40
  6. Step 6: Final answer
    x = 1,224,413,445.60

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Double scale
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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.