Home / 289,658,010.20-434,990,900.10-153,609,114.20

Finding the Fourth Proportional to 289,658,010.20, 434,990,900.10 and 153,609,114.20

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Solution

The fourth proportional to 289,658,010.20, 434,990,900.10 and 153,609,114.20 is: 230,680,887.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,658,010.20 : 434,990,900.10 = 153,609,114.20 : x
  2. Step 2: Convert to fraction form
    289,658,010.20/434,990,900.10 = 153,609,114.20/x
  3. Step 3: Cross multiply
    289,658,010.20x = 434,990,900.10 × 153,609,114.20
  4. Step 4: Simplify right side
    289,658,010.20x = 66,818,566,849,421,688
  5. Step 5: Solve for x
    x = 66,818,566,849,421,688/289,658,010.20
  6. Step 6: Final answer
    x = 230,680,887.45

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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.