Finding the Fourth Proportional to 940,609,948.14, 1,298,124,368.74 and 517,298,134.86
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Solution
The fourth proportional to 940,609,948.14, 1,298,124,368.74 and 517,298,134.86 is: 713,916,875.00
Step by Step Solution
- Step 1: Write the proportion equation
940,609,948.14 : 1,298,124,368.74 = 517,298,134.86 : x - Step 2: Convert to fraction form
940,609,948.14/1,298,124,368.74 = 517,298,134.86/x - Step 3: Cross multiply
940,609,948.14x = 1,298,124,368.74 × 517,298,134.86 - Step 4: Simplify right side
940,609,948.14x = 671,517,314,765,516,928 - Step 5: Solve for x
x = 671,517,314,765,516,928/940,609,948.14 - Step 6: Final answer
x = 713,916,875.00
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Double scale
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1.5x scale
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.