Home / 1,381,050,140.29-1,905,849,958.13-745,970,628.83

Finding the Fourth Proportional to 1,381,050,140.29, 1,905,849,958.13 and 745,970,628.83

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Solution

The fourth proportional to 1,381,050,140.29, 1,905,849,958.13 and 745,970,628.83 is: 1,029,439,880.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,050,140.29 : 1,905,849,958.13 = 745,970,628.83 : x
  2. Step 2: Convert to fraction form
    1,381,050,140.29/1,905,849,958.13 = 745,970,628.83/x
  3. Step 3: Cross multiply
    1,381,050,140.29x = 1,905,849,958.13 × 745,970,628.83
  4. Step 4: Simplify right side
    1,381,050,140.29x = 1,421,708,091,721,865,472
  5. Step 5: Solve for x
    x = 1,421,708,091,721,865,472/1,381,050,140.29
  6. Step 6: Final answer
    x = 1,029,439,880.74

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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.