Home / 1,167,506,038.98-1,611,158,282.70-638,870,068.71

Finding the Fourth Proportional to 1,167,506,038.98, 1,611,158,282.70 and 638,870,068.71

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Solution

The fourth proportional to 1,167,506,038.98, 1,611,158,282.70 and 638,870,068.71 is: 881,640,666.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,167,506,038.98 : 1,611,158,282.70 = 638,870,068.71 : x
  2. Step 2: Convert to fraction form
    1,167,506,038.98/1,611,158,282.70 = 638,870,068.71/x
  3. Step 3: Cross multiply
    1,167,506,038.98x = 1,611,158,282.70 × 638,870,068.71
  4. Step 4: Simplify right side
    1,167,506,038.98x = 1,029,320,802,771,234,688
  5. Step 5: Solve for x
    x = 1,029,320,802,771,234,688/1,167,506,038.98
  6. Step 6: Final answer
    x = 881,640,666.86

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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.