Home / 563,579,609.13-777,713,511.06-312,681,330.77

Finding the Fourth Proportional to 563,579,609.13, 777,713,511.06 and 312,681,330.77

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Solution

The fourth proportional to 563,579,609.13, 777,713,511.06 and 312,681,330.77 is: 431,485,617.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    563,579,609.13 : 777,713,511.06 = 312,681,330.77 : x
  2. Step 2: Convert to fraction form
    563,579,609.13/777,713,511.06 = 312,681,330.77/x
  3. Step 3: Cross multiply
    563,579,609.13x = 777,713,511.06 × 312,681,330.77
  4. Step 4: Simplify right side
    563,579,609.13x = 243,176,495,592,161,312
  5. Step 5: Solve for x
    x = 243,176,495,592,161,312/563,579,609.13
  6. Step 6: Final answer
    x = 431,485,617.39

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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.