Home / 805,861,432.40-1,208,792,148.60-644,618,296.40

Finding the Fourth Proportional to 805,861,432.40, 1,208,792,148.60 and 644,618,296.40

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Solution

The fourth proportional to 805,861,432.40, 1,208,792,148.60 and 644,618,296.40 is: 966,927,444.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,861,432.40 : 1,208,792,148.60 = 644,618,296.40 : x
  2. Step 2: Convert to fraction form
    805,861,432.40/1,208,792,148.60 = 644,618,296.40/x
  3. Step 3: Cross multiply
    805,861,432.40x = 1,208,792,148.60 × 644,618,296.40
  4. Step 4: Simplify right side
    805,861,432.40x = 779,209,535,532,227,584
  5. Step 5: Solve for x
    x = 779,209,535,532,227,584/805,861,432.40
  6. Step 6: Final answer
    x = 966,927,444.60

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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.