Home / 817,871,569.40-1,226,807,354.10-688,731,406.40

Finding the Fourth Proportional to 817,871,569.40, 1,226,807,354.10 and 688,731,406.40

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Solution

The fourth proportional to 817,871,569.40, 1,226,807,354.10 and 688,731,406.40 is: 1,033,097,109.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,871,569.40 : 1,226,807,354.10 = 688,731,406.40 : x
  2. Step 2: Convert to fraction form
    817,871,569.40/1,226,807,354.10 = 688,731,406.40/x
  3. Step 3: Cross multiply
    817,871,569.40x = 1,226,807,354.10 × 688,731,406.40
  4. Step 4: Simplify right side
    817,871,569.40x = 844,940,754,371,155,712
  5. Step 5: Solve for x
    x = 844,940,754,371,155,712/817,871,569.40
  6. Step 6: Final answer
    x = 1,033,097,109.60

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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.