Home / 611,688,689,188.44-917,280,590,801.49-208,804,610,257.11

Finding the Fourth Proportional to 611,688,689,188.44, 917,280,590,801.49 and 208,804,610,257.11

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Solution

The fourth proportional to 611,688,689,188.44, 917,280,590,801.49 and 208,804,610,257.11 is: 313,120,742,044.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,688,689,188.44 : 917,280,590,801.49 = 208,804,610,257.11 : x
  2. Step 2: Convert to fraction form
    611,688,689,188.44/917,280,590,801.49 = 208,804,610,257.11/x
  3. Step 3: Cross multiply
    611,688,689,188.44x = 917,280,590,801.49 × 208,804,610,257.11
  4. Step 4: Simplify right side
    611,688,689,188.44x = 191,532,416,258,716,687,400,960
  5. Step 5: Solve for x
    x = 191,532,416,258,716,687,400,960/611,688,689,188.44
  6. Step 6: Final answer
    x = 313,120,742,044.18

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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.