Finding the Fourth Proportional to 817,298,715.25, 1,127,871,930.45 and 446,020,746.63
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Solution
The fourth proportional to 817,298,715.25, 1,127,871,930.45 and 446,020,746.63 is: 615,508,468.49
Step by Step Solution
- Step 1: Write the proportion equation
817,298,715.25 : 1,127,871,930.45 = 446,020,746.63 : x - Step 2: Convert to fraction form
817,298,715.25/1,127,871,930.45 = 446,020,746.63/x - Step 3: Cross multiply
817,298,715.25x = 1,127,871,930.45 × 446,020,746.63 - Step 4: Simplify right side
817,298,715.25x = 503,054,280,522,328,448 - Step 5: Solve for x
x = 503,054,280,522,328,448/817,298,715.25 - Step 6: Final answer
x = 615,508,468.49
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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.