Home / 785,285,430.51-1,083,742,378.64-432,860,626.35

Finding the Fourth Proportional to 785,285,430.51, 1,083,742,378.64 and 432,860,626.35

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Solution

The fourth proportional to 785,285,430.51, 1,083,742,378.64 and 432,860,626.35 is: 597,374,389.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,285,430.51 : 1,083,742,378.64 = 432,860,626.35 : x
  2. Step 2: Convert to fraction form
    785,285,430.51/1,083,742,378.64 = 432,860,626.35/x
  3. Step 3: Cross multiply
    785,285,430.51x = 1,083,742,378.64 × 432,860,626.35
  4. Step 4: Simplify right side
    785,285,430.51x = 469,109,404,817,984,960
  5. Step 5: Solve for x
    x = 469,109,404,817,984,960/785,285,430.51
  6. Step 6: Final answer
    x = 597,374,389.73

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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.