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Finding the Fourth Proportional to 289,636,703,980.90, 434,455,055,971.35 and 289,636,703,980.90

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Solution

The fourth proportional to 289,636,703,980.90, 434,455,055,971.35 and 289,636,703,980.90 is: 434,455,055,971.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,636,703,980.90 : 434,455,055,971.35 = 289,636,703,980.90 : x
  2. Step 2: Convert to fraction form
    289,636,703,980.90/434,455,055,971.35 = 289,636,703,980.90/x
  3. Step 3: Cross multiply
    289,636,703,980.90x = 434,455,055,971.35 × 289,636,703,980.90
  4. Step 4: Simplify right side
    289,636,703,980.90x = 125,834,130,439,379,236,159,488
  5. Step 5: Solve for x
    x = 125,834,130,439,379,236,159,488/289,636,703,980.90
  6. Step 6: Final answer
    x = 434,455,055,971.35

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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.