Home / 1,369,442,976.63-1,889,671,875.13-766,646,607.98

Finding the Fourth Proportional to 1,369,442,976.63, 1,889,671,875.13 and 766,646,607.98

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Solution

The fourth proportional to 1,369,442,976.63, 1,889,671,875.13 and 766,646,607.98 is: 1,057,883,064.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,369,442,976.63 : 1,889,671,875.13 = 766,646,607.98 : x
  2. Step 2: Convert to fraction form
    1,369,442,976.63/1,889,671,875.13 = 766,646,607.98/x
  3. Step 3: Cross multiply
    1,369,442,976.63x = 1,889,671,875.13 × 766,646,607.98
  4. Step 4: Simplify right side
    1,369,442,976.63x = 1,448,710,533,250,339,072
  5. Step 5: Solve for x
    x = 1,448,710,533,250,339,072/1,369,442,976.63
  6. Step 6: Final answer
    x = 1,057,883,064.85

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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.