Home / 1,913,918,307-2,870,877,457.26-459,895,731

Finding the Fourth Proportional to 1,913,918,307, 2,870,877,457.26 and 459,895,731

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Solution

The fourth proportional to 1,913,918,307, 2,870,877,457.26 and 459,895,731 is: 689,843,595.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,913,918,307 : 2,870,877,457.26 = 459,895,731 : x
  2. Step 2: Convert to fraction form
    1,913,918,307/2,870,877,457.26 = 459,895,731/x
  3. Step 3: Cross multiply
    1,913,918,307x = 2,870,877,457.26 × 459,895,731
  4. Step 4: Simplify right side
    1,913,918,307x = 1,320,304,286,818,009,088
  5. Step 5: Solve for x
    x = 1,320,304,286,818,009,088/1,913,918,307
  6. Step 6: Final answer
    x = 689,843,595.72

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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.