Home / 785,285,430.76-1,083,742,378.98-432,860,626.60

Finding the Fourth Proportional to 785,285,430.76, 1,083,742,378.98 and 432,860,626.60

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Solution

The fourth proportional to 785,285,430.76, 1,083,742,378.98 and 432,860,626.60 is: 597,374,390.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,285,430.76 : 1,083,742,378.98 = 432,860,626.60 : x
  2. Step 2: Convert to fraction form
    785,285,430.76/1,083,742,378.98 = 432,860,626.60/x
  3. Step 3: Cross multiply
    785,285,430.76x = 1,083,742,378.98 × 432,860,626.60
  4. Step 4: Simplify right side
    785,285,430.76x = 469,109,405,238,257,472
  5. Step 5: Solve for x
    x = 469,109,405,238,257,472/785,285,430.76
  6. Step 6: Final answer
    x = 597,374,390.08

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.