Home / 209,894,417.02-289,663,056.06-115,814,666.92

Finding the Fourth Proportional to 209,894,417.02, 289,663,056.06 and 115,814,666.92

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Solution

The fourth proportional to 209,894,417.02, 289,663,056.06 and 115,814,666.92 is: 159,829,074.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,894,417.02 : 289,663,056.06 = 115,814,666.92 : x
  2. Step 2: Convert to fraction form
    209,894,417.02/289,663,056.06 = 115,814,666.92/x
  3. Step 3: Cross multiply
    209,894,417.02x = 289,663,056.06 × 115,814,666.92
  4. Step 4: Simplify right side
    209,894,417.02x = 33,547,230,356,618,188
  5. Step 5: Solve for x
    x = 33,547,230,356,618,188/209,894,417.02
  6. Step 6: Final answer
    x = 159,829,074.22

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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.