Home / 916,515,665.04-1,264,791,547.60-498,830,945.12

Finding the Fourth Proportional to 916,515,665.04, 1,264,791,547.60 and 498,830,945.12

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Solution

The fourth proportional to 916,515,665.04, 1,264,791,547.60 and 498,830,945.12 is: 688,386,666.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,515,665.04 : 1,264,791,547.60 = 498,830,945.12 : x
  2. Step 2: Convert to fraction form
    916,515,665.04/1,264,791,547.60 = 498,830,945.12/x
  3. Step 3: Cross multiply
    916,515,665.04x = 1,264,791,547.60 × 498,830,945.12
  4. Step 4: Simplify right side
    916,515,665.04x = 630,917,163,069,095,424
  5. Step 5: Solve for x
    x = 630,917,163,069,095,424/916,515,665.04
  6. Step 6: Final answer
    x = 688,386,666.08

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Double scale
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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.